- ID:
- ivo://nasa.heasarc/mwmc
- Title:
- Milky Way Molecular Clouds from CO Measurements
- Short Name:
- MWMC
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This study presents a catalog of 8107 molecular clouds that covers the entire Galactic plane and includes 98% of the <sup>12</sup>CO emission observed within b +/- 5 deg. The catalog was produced using a hierarchical cluster identification method applied to the result of a Gaussian decomposition of the Dame+ (2001ApJ...547..792D) data. The total H<sub>2</sub> mass in the catalog is 1.2 x 10<sup>9</sup> M<sub>sun</sub>, in agreement with previous estimates. The authors find that 30% of the sight lines intersect only a single cloud, with another 25% intersecting only two clouds. The most probable cloud size is R~30pc. In contrast with the general idea, the authors find a rather large range of values of surface densities, Sigma = 2 to 300 M<sub>sun</sub>/pc<sup>2</sup>, and a systematic decrease with increasing Galactic radius, R<sub>gal</sub>. The cloud velocity dispersion and the normalization sigma<sub>0</sub> = sigma<sub>v</sub> / R<sup>1/2</sup> both decrease systematically with R<sub>gal</sub>. When studied over the whole Galactic disk, there is a large dispersion in the line width-size relation and a significantly better correlation between sigma<sub>v</sub> and SigmaR. The normalization of this correlation is constant to better than a factor of two for R<sub>gal</sub> < 20kpc. This relation is used to disentangle the ambiguity between near and far kinematic distances. The authors report a strong variation of the turbulent energy injection rate. In the outer Galaxy it may be maintained by accretion through the disk and/or onto the clouds, but neither source can drive the 100 times higher cloud-averaged injection rate in the inner Galaxy. The data set used in this catalog come from that of Dame+ (2001ApJ...547..792D). Those authors combined observations obtained over a period of 20 yr with two telescopes, one in the north (first located in New York City and then moved to Cambridge, Massachusetts) and one in the south (Cerro Tololo, Chile). These 1.2m telescopes have an angular resolution of ~8.5' at 115GHz, the frequency of the <sup>12</sup>CO 1-0 line. For the current study the authors used the data set covering the whole Galactic plane with +/- 5 deg in Galactic latitude. This table was created by the HEASARC in March 2019 based upon the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/ApJ/834/57">CDS Catalog J/ApJ/834/57</a> file table1.dat. This is a service provided by NASA HEASARC .
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- ID:
- ivo://nasa.heasarc/mwp1bubble
- Title:
- Milky Way Project First Data Release IR Bubble Catalog
- Short Name:
- MWP1BUBBLE
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This table contains a new catalog of 5106 infrared bubbles created through visual classification via the online citizen science website 'The Milky Way Project' (MWP). Bubbles in the new catalog have been independently measured by at least five individuals, producing consensus parameters for their positions, radii, thicknesses, eccentricities and position angles. Citizen scientists - volunteers recruited online and taking part in this research - have independently rediscovered the locations of at least 86% of three widely used catalogs of bubbles and H II regions while finding an order of magnitude more objects. 29% of the bubbles in the Milky Way Project catalog lie on the rim of a larger bubble, or have smaller bubbles located within them, opening up the possibility of better statistical studies of triggered star formation. This online resource of the <a href="http://www.milkywayproject.org/">Milky Way Project</a> provides a crowd-sourced map of bubbles and arcs in the Milky Way, and will enable better statistical analysis of Galactic star formation sites. This table is the first data release of the MWP IR Bubble Catalog: the authors anticipate a future release of a second, refined catalog incorporating better data-reduction techniques. This table was created by the HEASARC in March 2013 based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/424/2442">CDS Catalog J/MNRAS/424/2442</a> files mwplarge.dat and mwpsmall.dat. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/mwsc
- Title:
- Milky Way Star Clusters Catalog
- Short Name:
- MWSC
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study is to determine a full set of uniform spatial, structural, kinematic, and astrophysical parameters for as many known open clusters as possible. On the basis of stellar data from PPMXL and 2MASS, the authors used a dedicated data-processing pipeline to determine kinematic and photometric membership probabilities for stars in a cluster region. For an input list of 3,784 targets from the literature, they confirm that 3,006 are real objects, the vast majority of them are open clusters, but associations and globular clusters are also present. For each confirmed object, the authors determined the exact position of the cluster center, the apparent size, proper motion, distance, color excess, and age. For about 1,500 clusters, these basic astrophysical parameters have been determined for the first time. For the bulk of the clusters the authors also derived the tidal radii. In addition, they estimated average radial velocities for more than 30% of the confirmed clusters. The present sample (called MWSC) reaches both the central parts of the Milky Way and its outer regions. It is almost complete up to 1.8 kpc from the Sun and also covers the neighboring spiral arms. However, for a small subset of the oldest open clusters (ages more than ~ 1 Gyr), the authors found some evidence of incompleteness within about 1 kpc from the Sun. This table contains the list of 3,006 Milky Way stellar clusters (MWSC) found in the 2MAst (2MASS with Astrometry) catalog presented in Paper II of this series (these clusters have source numbers below 4000), together with an additional 139 new open clusters (these clusters have source numbers between 5000 and 6000) found by the authors at high Galactic latitudes (|b_II_| > 18.5 degrees) which were presented in Paper III of the series, and an additional 63 new open clusters (these clusters have source numbers between 4000 and 5000) which were presented in Paper IV of the series. The target list in Paper II from which the 3,006 open clusters was contained was compiled on the basis of present-day lists of open, globular and candidate clusters. The list of new high-latitude open clusters in Paper III was obtained from a target list of 714 density enhancements found using the 2MASS Catalog. The list of new open clusters in Paper IV was obtained from an initial list of 692 compact cluster candidates which were found by the authors by conducting an almost global search of the sky (they excluded the portions of the sky with |b_II_| < 5 degrees) in the PPMXL and the UCAC4 proper-motion catalogs. For confirmed clusters, the authors determined a homogeneous set of astrophysical parameters such as membership, angular radii of the main morphological parts, mean cluster proper motions, distances, reddenings, ages, tidal parameters, and sometimes radial velocities. This table was created by the HEASARC in February 2014 based on the list of open clusters given in <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/558/A53">CDS Catalog J/A+A/558/A53</a> files catalog.dat and notes.dat. It was updated in September 2014 with 139 additional star clusters from <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/568/A51">CDS Catalog J/A+A/568/A51</a> files catalog.dat and notes.dat. It was further updated in October 2015 with 63 additional star clusters from <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/581/A39">CDS Catalog J/A+A/581/A39</a> files catalog.dat and notes.dat. Note that this table does not include the information on candidates which turned out not to be open clusters which was also contained in these catalogs. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/milliquas
- Title:
- Million Quasars Catalog (MILLIQUAS), Version 8 (2 August 2023)
- Short Name:
- MILLIQUAS
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This table contains the Million Quasars (MILLIQUAS) Catalog, Version 8 (2 August 2023). It is a compendium of 907,144 type-I QSOs and AGN, largely complete from the literature to 30 June 2023. 66,026 QSO candidates are also included, calculated via radio/X-ray association (including double radio lobes) as being 99% likely to be quasars. Blazars and type-II objects are also included, bringing the total count to 1,021,800. 60.7% of all objects show Gaia-EDR3 astrometry. Low-confidence/quality or questionable objects (so deemed by their researchers) are not included in Milliquas. Additional quality cuts can be applied as detailed in the HMQ paper (Flesch 2015,PASA,32,10). Full QSO/AGN classification is accomplished via spectral lines, yielding a reliable spectroscopic redshift. Two spectral lines are required, or one spectral line refining a compatible photometric redshift. Obscured AGN with redshifts from the hosts only are taken to be type-II objects. Some legacy quasars with neither good spectra nor radio/X-ray association were flagged by Gaia-EDR3 as 5-sigma moving (i.e., stars), and so were removed from Milliquas. All objects are de-duplicated across source catalogs. The author's aim here is to present one unique reliable object per each data row. Two NIQs offset < 2 arcsec can be reported as a single object if within the same host. Lenses are reported as single objects onto the brightest quasar imaged. (Milliquas is not a catalog of lenses.) The contents are relatively simple; each object is shown as one entry with the sky coordinates (of whatever epoch), its original name, object class, red and blue optical magnitudes, PSF class, redshift, the citations for the name and redshift, and up to four radio/X-ray identifiers where applicable. Questions/comments/praise/complaints may be directed to Eric Flesch at eric@flesch.org. If you use this catalog in published research, the author requests that you please cite it. The confirmed quasars of this catalog (to Jan 2015) were published as the Half Million Quasars (HMQ) catalog: Flesch E., 2015,PASA,32,10. Note however that Milliquas uses optical sky data from ASP (2017,PASA,34,25) whereas the HMQ used optical sky data from QORG (2004,A&A,427,387) Appendix A. This table was updated by the HEASARC in July 2023 based on a machine-readable catalog obtained from the author's MILLIQUAS website at <a href="https://quasars.org/milliquas.htm">https://quasars.org/milliquas.htm</a>. <p> This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. <p> This research has made use of the SIMBAD database and CDS cross-match service (to obtain Gaia-EDR3 and Pan-STARRS photometry) provided by CDS, Strasbourg, France. <a href="https://simbad.cds.unistra.fr/simbad">https://simbad.cds.unistra.fr/simbad</a> This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/morx
- Title:
- Millions of Optical Radio/X-Ray (MORX) Associations Catalog, Version 2
- Short Name:
- MORX
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The Millions of Optical Radio/X-ray Associations (MORX) catalog combines all of the largest published optical, radio, and X-ray sky catalogs to find probable radio/X-ray associations with optical objects, plus double radio lobes, using uniform processing against all input data. This catalog contains 3,115,575 optical objects. Each object has optical coordinates (of the epoch of its photometry), its original name (if any), object class, red and blue optical magnitudes, PSF class, redshift (if any), the citations for the name and redshift, and the likelihoods of the radio/X-ray associations and that the object (if unclassified) should be a QSO, galaxy, or star. Each object may have up to four X-ray identifiers, up to five radio identifiers, and up to two double radio lobe identifiers. MORX is a compendium of optical objects which are calculated as being associated with Chandra, XMM-Newton, Swift, or ROSAT X-ray sources, or with NVSS, FIRST, VLASS, LoTSS, RACS, or SUMSS radio sources or double radio lobes. All have likelihoods in the range of 40-100% confidence in their associations. The counts of the associations for this main sample are as follows: <pre> Optical objects (rows in this catalog) - 3,115,575 Chandra - 102,652 X-ray associations XMM-Newton - 263,649 X-ray associations Swift - 120,647 X-ray associations ROSAT - 31,750 X-ray associations XMM Slew - 11,428 X-ray associations VLASS - 439,283 core radio associations, plus 15,763 double radio lobes(*). LoTSS - 1,804,886 core radio associations, plus 73,142 double radio lobes. RACS - 582,668 core radio associations, plus 12,009 double radio lobes. FIRST - 275,552 core radio associations, plus 9000 double radio lobes. NVSS - 316,039 core radio associations, plus 675 double radio lobes. SUMSS - 47,549 core radio associations, plus 42 double radio lobes. </pre> (*) Lobe pairs are presented once only, so not from multiple radio surveys. MORX and <a href="/W3Browse/all/milliquas.html">Milliquas</a> are extracted from the same master data pool. All data quality rules pertaining to Milliquas also hold for MORX. The radio/X-ray source prefixes, and their source catalog home pages that are cited in this table, are as follows: <pre> FIRST: VLA FIRST survey, 13Jun05 version, <a href="https://sundog.stsci.edu">https://sundog.stsci.edu</a> VLA (abbrev of VLASS1QLCIR): VLASS Quick Look, <a href="https://cirada.ca/catalogues">https://cirada.ca/catalogues</a> RACS: Rapid ASKAP Continuum Survey, 2021,PASA,38,58, <a href="https://research.csiro.au/racs/">https://research.csiro.au/racs/</a>, main source file RACD: RACS as above, but from their main detection ("Gaussian") file ILT: LoTSS-DR2 (LOFAR Two-metre Sky Survey), 2022,A&A,659,A1, <a href="https://lofar-surveys.org/">https://lofar-surveys.org/</a>, main source catalog ILD: LoTSS-DR2 as above, but from their main detection ("Gaussian") file NVSS: NRAO VLA sky survey, <a href="https://www.cv.nrao.edu/nvss">https://www.cv.nrao.edu/nvss</a> SUMSS: Sydney U. Molonglo, <a href="http://www.astrop.physics.usyd.edu.au/sumsscat/">http://www.astrop.physics.usyd.edu.au/sumsscat/</a> MGPS: Molonglo galactic plane, www.astrop.physics.usyd.edu.au/mgpscat/ 1RXH: ROSAT HRI (high resolution), <a href="https://cdsarc.cds.unistra.fr/cat/?IX/28A">https://cdsarc.cds.unistra.fr/cat/?IX/28A</a> 2RXP: ROSAT PSPC (proportional), <a href="https://cdsarc.cds.unistra.fr/cat/?IX/30">https://cdsarc.cds.unistra.fr/cat/?IX/30</a> 2RXF: <a href="https://heasarc.gsfc.nasa.gov/W3Browse/rosat/rospspcftot.html">https://heasarc.gsfc.nasa.gov/W3Browse/rosat/rospspcftot.html</a> 1WGA: White, Giommi & Angelini, <a href="https://heasarc.gsfc.nasa.gov/wgacat/">https://heasarc.gsfc.nasa.gov/wgacat/</a> CXOG: Chandra ACIS source catalog, Wang S. et al., 2016,ApJS,224,40 CXO: Chandra Source Catalog v1.1, <a href="https://asc.harvard.edu/csc1/">https://asc.harvard.edu/csc1/</a> 2CXO: Chandra Source Catalog v2.0, <a href="https://asc.harvard.edu/csc2/">https://asc.harvard.edu/csc2/</a> CXOX: XAssist Chandra, <a href="https://asd.gsfc.nasa.gov/xassist/pipeline4/chandra/">https://asd.gsfc.nasa.gov/xassist/pipeline4/chandra/</a> 2XMM/2XMMi: XMM-Newton DR3, <a href="https://cdsarc.cds.unistra.fr/cat/?IX/41">https://cdsarc.cds.unistra.fr/cat/?IX/41</a> 4XMM: XMM-Newton DR13, <a href="https://www.cosmos.esa.int/web/xmm-newton/xsa">https://www.cosmos.esa.int/web/xmm-newton/xsa</a> XMMSL: XMM-Newton Slew Survey Release 2.0, same attribution as 4XMM XMMX: XAssist XMM-Newton, <a href="https://asd.gsfc.nasa.gov/xassist/pipeline5/xmm/">https://asd.gsfc.nasa.gov/xassist/pipeline5/xmm/</a> LSXPS: Swift X-ray Point Sources, <a href="https://www.swift.ac.uk/LSXPS">https://www.swift.ac.uk/LSXPS</a> (01July23) </pre> RASS (ROSAT All-Sky Survey) is not included as its low resolution is not usable in isolation. Optical field solutions are calculated from the raw source positions of all these catalogs (except 2CXO) as described in the author's MORX v1 paper, 2016,PASA,33,52. This table was originally ingested by the HEASARC in May 2017. It was last updated in July 2023 to version 2 based upon the data file downloaded from the author's website at <a href="https://quasars.org/morx.htm">https://quasars.org/morx.htm</a>. <p> This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory,California Institute of Technology, under contract with the National Aeronautics and Space Administration. <p> This research has made use of the SIMBAD database and CDS cross-match service to obtain Gaia-EDR3 and Pan-STARRS photometry provided by CDS, Strasbourg, France. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/m31stars2
- Title:
- MIT/Amsterdam M 31 Survey
- Short Name:
- M31Stars/deep
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The MIT/Amsterdam M 31 Survey, or the Extended Magnier et al. Catalog of Objects in the Field of M 31, is based on deep BVRI CCD photometry that was performed on a 1 square degree region of M 31. The observations were made between September 12 and September 27 1990, using the McGraw-Hill 1.3m telescope at the Michigan-Dartmouth-MIT (MDM) observatory at Kitt Peak. The catalogue has typical completeness limits of 20.7 (Bmag), 21.7 (Vmag), 20.2 (Rmag) and 20.5 (Imag), although there is a large region in the inner disk for which the completeness limits are substantially deeper: 22.3 (Bmag), 22.2 (Vmag), 22.2 (Rmag), and 20.9 (Imag). The photometric accuracy is about 2% at Vmag = 19. The final astrometric calibrations take into account the systematic error discovered in the Berkhuijsen et al. (1988, A&AS, 76, 65) catalog by Magnier et al. (1993, A&A, 272, 695). They are in the J2000 system and are eventually tied to the HST Guide Star Catalog. The final photometric calibrations are tied via the NGC 206 region to photometry taken at the Michigan-Dartmouth-MIT (MDM) 1.3m in September and October 1993. These are tied to the Landolt (1992, AJ, 104, 340) system of standard stars, and are in the Johnson-Kron-Cousins system (BVRcIc). This version of the MIT/Amsterdam M31 Survey Catalog was created at the HEASARC in March 1999 based on the CDS/ADC Catalogue II/208. The HEASARC revised this version in February 2001. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/mitgb6cm
- Title:
- MIT-Green Bank 5-GHz Survey Catalog
- Short Name:
- MIT-GB
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The MIT-Green Bank 5 GHz Survey Catalog was produced from four separate surveys with the National Radio Astronomy Observatory (NRAO) 91m transit telescope, the results from which were presented in papers by Bennett et al., 1986ApJS...61....1B (MG1), Langston et al., 1990ApJS...72..621L (MG2), Griffith et al., 1990ApJS...74..129G (MG3), and Griffith et al. 1991ApJS...75..801G (MG4). The sky coverage of the various surveys is: <pre> 00h < RAB < 24h, -00d30'13" < DECB < +19d29'47" for MG1 04h < RAJ < 21h, +17.0d < DECJ < +39d09' for MG2 16h30m < RAB < 05h, +17d < DECB < +39d09' for MG3 15h30m < RAB < 02h30m, +37.00d < DECB < +50d58'48" for MG4 </pre> where RAB and DECB refer to B1950 coordinates, and RAJ and DECJ refer to J2000 coordinates. The catalog contains 20344 sources detected with a signal-to-noise ratio greater than 5 and 3836 possible detections (MG1) with a signal-to-noise ratio less than 5. Spectral indices are computed for MG1 sources also identified in the Texas 365 MHz survey (Douglas et al. 1980, Univ. Texas Pub. Astr. No. 17), and for MG1-MG4 sources also identified in the NRAO 1400 MHz Survey (Condon and Broderick 1985, AJ, 90, 2540 = 1985AJ.....90.2540C). This online catalog was created by the HEASARC in October 2003 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/VIII/52B">CDS catalog VIII/52B</a> (the file mgcat.dat). This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/mgps2
- Title:
- Molonglo Galactic Plane Survey 2nd Epoch Compact Source Catalog
- Short Name:
- MGPS2
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This table contains the Molonglo Galactic Plane Survey 2nd Epoch (MGPS-2) Compact Source Catalog. The MGPS-2 was carried out with the Molonglo Observatory Synthesis Telescope (MOST) at a frequency of 843 MHz and with a restoring beam of 45" x 45" cosec |(delta)|, where delta is the declination, making it the highest resolution large-scale radio survey of the southern Galactic plane to date. It covers the range |b| < 10 degrees and 245 < l < 365 degrees, where l and b are the Galactic longitude and latitude, and is the Galactic counterpart to the SUMSS (<a href="https://cdsarc.cds.unistra.fr/ftp/cats/VIII/81">CDS Cat. VIII/81</a>) Catalog which covers that portion of the southern sky with delta < -30 degrees, |b| > 10 degrees. This version of the catalog (15-Aug-2007) consists of 48850 compact sources, made by fitting elliptical Gaussians in the MGPS-2 mosaics to a limiting peak brightness of 10 mJy/beam. The authors used a custom method (described in the associated reference publication) to remove extended sources from the catalog. Positions in the catalog are accurate to 1" - 2". The authors have carried out an analysis of the compact source density across the Galactic plane and find that the source density is not statistically higher than the density expected from the extragalactic source density alone. See <a href="http://www.astrop.physics.usyd.edu.au/mosaics">http://www.astrop.physics.usyd.edu.au/mosaics</a> for access to the MGPS-2 mosaic images. This HEASARC table was created in January 2008 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/382/382">CDS catalog J/MNRAS/382/382</a> file mgpscat.dat. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/mostatlas
- Title:
- Molonglo Observatory Synthesis Telescope ATLAS 843-MHz Source Catalog
- Short Name:
- MOSTATLAS
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- At the faintest radio flux densities (S<sub>1.4</sub> < 10 mJy), conflicting results have arisen regarding whether there is a flattening of the average spectral index between a low radio frequency (325 or 610 MHz) and, for example, 1.4 GHz. The authors present a new catalog of 843-MHz radio sources in the European Large Area ISO Survey-South 1 (ELAIS-S1) field, which contains the sources, their Australia Telescope Large Area Survey (ATLAS) counterparts and the spectral index distribution of the sources as a function of flux density. The authors do not find any statistically significant evidence for a trend towards flatter spectral indices with decreasing flux density. In the reference paper, they investigate the spectral index distribution with redshift for those sources with reliable redshifts and explore the infrared properties. An initial sample of faint compact steep-spectrum sources in ATLAS are also presented, with a brief overview of their properties. To obtain low-radio-frequency (843-MHz) data within the ATLAS ELAIS-S1 region (Middelberg et al. 2008, AJ, 135, 1276, the tables from which are available as the ATLASESID and ATLASESCPT tables in the HEASARC database), the authors used the Molonglo Observatory Synthesis Telescope (MOST). They have made 31 separate 12-h observations taken with MOST, which were combined into a single image with a spatial resolution of 62 arcsec x 43 arcsec. This table was created by the HEASARC in January 2013 based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/421/1644">CDS Catalog J/MNRAS/421/1644</a> file table1.dat. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/mostsnrcat
- Title:
- Molonglo Observatory Synthesis Telescope Supernova Remnant Catalog
- Short Name:
- MOSTSNRCAT
- Date:
- 14 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- A catalog of supernova remnants (SNR) in the southern Galaxy within the Galactic Plane area 245 degrees <= galactic longitude l_II <= 355 degrees, galactic latitude |b_II| <~ 1.5 degrees has been produced from observations made in a series of 650 overlapping fields at 0.843 GHz (35.6 cm) with a spatial resolution of 43" using the Molonglo Observatory Synthesis Telescope (MOST). This table contains information on 57 known SNR (listed in Table MSC.A of the reference paper), 18 SNR newly discovered in this survey (Table MSC.B), 16 possible SNR (Table MSC.C), and 2 reclassified SNR (discussed in Section 3.3 of the reference paper), for a total of 93 SNR. This table was created by the HEASARC in March 2007 based on the CDS table J/A+AS/118/329, file msc.dat. This is a service provided by NASA HEASARC .
