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1151. MAST CAOM ObsPointing ConeSearch
ID:
ivo://archive.stsci.edu/catalogs/obspointing
Title:
MAST CAOM ObsPointing ConeSearch
Short Name:
MAST ObsPointing
Date:
30 Oct 2024 18:49:06
Publisher:
Space Telescope Science Institute Archive
Description:
All MAST catalog holdings are available via a ConeSearch endpoint. This service provides access to MAST holdings with pointing positional information in the Common Archive Observation Model (CAOM) database, by providing access to the ObsPointing table as a cone search. This serves the same data as the MAST CAOMTAP service, linked as an auxiliary capability. Available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
1152. MAST ConeSearch
ID:
ivo://archive.stsci.edu/catalogs/mastcs
Title:
MAST ConeSearch
Short Name:
MAST CS
Date:
23 Jul 2020 19:55:10
Publisher:
Space Telescope Science Institute Archive
Description:
All MAST catalog holdings are available via a ConeSearch endpoint. This service provides access to all, with an optional non-standard parameter for an individual catalog to query. The available missions are listed at http://archive.stsci.edu/vo/mast_services.html, and include Hubble (HST) data, Kepler, K2, IUE, HUT, EUVE, FUSE, UIT, WUPPE, BEFS, TUES, IMAPS, High Level Science Products (HLSP), Copernicus, HPOL, VLA First, XMM-OM, and SWIFT.
1153. MASTER polarization observations
ID:
ivo://CDS.VizieR/J/other/NewA/29.65
Title:
MASTER polarization observations
Short Name:
J/other/NewA/29.
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present results of optical polarization observations performed with the MASTER robotic net (Lipunov et al., 2004AN....325..580L, 2010, Advances in Astronomy, article id. 349171, 1; Kornilov et al., 2012, Exp. Astron., 33, p. 173) for three types of objects: gamma-ray bursts, supernovae, and blazars. For the Swift gamma-ray bursts GRB100906A, GRB110422A, GRB121011A, polarization observations were obtained during very early stages of optical emission. For GRB100906A it was the first prompt optical polarization observation in the world. Photometry in polarizers is presented for Type Ia Supernova 2012bh during 20 days, starting on March 27, 2012. We find that the linear polarization of SN 2012bh at the early stage of the envelope expansion was less than 3%. Polarization measurements for the blazars OC 457, 3C 454.3, QSO B1215+303, 87GB 165943.2+395846 at single nights are presented. We infer the degree of the linear polarization and polarization angle. The blazars OC 457 and 3C 454.3 were observed during their periods of activity. The results show that MASTER is able to measure substantially polarized light; at the same time it is not suitable for determining weak polarization (less than 5%) of dim objects (fainter than 16m). Polarimetric observations of the optical emission from gamma-ray bursts and supernovae are necessary to investigate the nature of these transient objects.
1154. MAST ObsCore ConeSearch
ID:
ivo://archive.stsci.edu/catalogs/obscore
Title:
MAST ObsCore ConeSearch
Short Name:
MAST ObsCore
Date:
30 Oct 2024 18:53:29
Publisher:
Space Telescope Science Institute Archive
Description:
All MAST catalog holdings are available via a ConeSearch endpoint. This service provides access to all MAST holdings with positional information that have been ingested into the Common Archive Observation Model (CAOM) and its summarized ObsCore format. It provides access to the same data as the CAOMTAP TAP service, linked as an auxiliary resource. Available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
1155. MAST SkyMapper Southern Survey Data Release 4 (SMSS DR4)
ID:
ivo://archive.stsci.edu/catalogs/skymapperdr4
Title:
MAST SkyMapper Southern Survey Data Release 4 (SMSS DR4)
Short Name:
MAST SkyMapper
Date:
16 Apr 2024 20:18:39
Publisher:
Space Telescope Science Institute Archive
Description:
MAST hosts a copy of the SkyMapper DR4 catalog. SMSS DR4 contains optical photometry in the 6 SkyMapper filters (u,v,g,r,i,z) for ~700 million astrophysical sources over 26,000 sq.deg, ranging from the South Celestial Pole to Dec=+16 degrees for objects with data in all bands, and some sources as far North as +29 degrees. The photometry is drawn from over 15 billion measurements made from more than 400,000 images acquired by the 1.3m SkyMapper telescope between March 2014 and September 2021. The typical 10-sigma depths for each field range between 18.5 and 20.5 ABmag, depending on the filter, but certain sky regions include longer exposures that reach as deep as 22 ABmag. Compared to previous SkyMapper data releases, DR4 includes significant enhancements in data processing, most notably a new photometric calibration anchored to synthetic photometry from Gaia low-resolution spectroscopy, which resolves reddening- and spatial-trends identified in previous releases, especially in the bluest filters, u and v. A large number of other photometric and spectroscopic surveys have been cross-matched to the dr4.master table of objects, to facilitate various scientific investigations.
1156. MAVERIC survey: Chandra X-ray sources in 38 GCs
ID:
ivo://CDS.VizieR/J/ApJ/901/57
Title:
MAVERIC survey: Chandra X-ray sources in 38 GCs
Short Name:
J/ApJ/901/57
Date:
17 Feb 2022 13:07:56
Publisher:
CDS
Description:
Globular clusters host a variety of lower-luminosity (L<SUB>X</SUB>&lt;10<SUP>35</SUP>erg/s) X-ray sources, including accreting neutron stars (NSs) and black holes (BHs), millisecond pulsars (MSPs), cataclysmic variables, and chromospherically active binaries. In this paper, we provide a comprehensive catalog of more than 1100 X-ray sources in 38 Galactic globular clusters (GCs) observed by the Chandra X-ray Observatory's Chandra/ACIS detector. The targets are selected to complement the MAVERIC survey's deep radio continuum maps of Galactic GCs. We perform photometry and spectral analysis for each source, determine a best-fit model, and assess the possibility of it being a foreground or background source based on its spectral properties and location in the cluster. We also provide basic assessments of variability. We discuss the distribution of X-ray binaries in GCs and their X-ray luminosity function, and we carefully analyze systems with L<SUB>X</SUB>&gt;10<SUP>33</SUP>erg/s. Among these moderately bright systems, we discover a new source in NGC 6539 that may be a candidate accreting stellar-mass BH or a transitional MSP. We show that quiescent NS low-mass X-ray binaries in GCs may spend &#8764;2% of their lifetimes as transitional MSPs in their active (L<SUB>X</SUB>&gt;10<SUP>33</SUP>erg/s) state. Finally, we identify a substantial underabundance of bright (L<SUB>X</SUB>&gt;10<SUP>33</SUP>erg/s) intermediate polars in GCs compared to the Galactic field, in contrast with the literature of the past two decades.
1157. MAVERIC survey: deep VLA imaging of 25 GCs
ID:
ivo://CDS.VizieR/J/ApJ/903/73
Title:
MAVERIC survey: deep VLA imaging of 25 GCs
Short Name:
J/ApJ/903/73
Date:
17 Feb 2022 13:24:49
Publisher:
CDS
Description:
The MAVERIC survey is the first deep radio continuum imaging survey of Milky Way globular clusters, with a central goal of finding and classifying accreting compact binaries, including stellar-mass black holes. Here we present radio source catalogs for 25 clusters with ultra-deep Karl G. Jansky Very Large Array observations. The median observing time was 10 hr per cluster, resulting in typical rms sensitivities of 2.3 and 2.1{mu}Jy per beam at central frequencies of 5.0 and 7.2GHz, respectively. We detect nearly 1300 sources in our survey at 5{sigma}, and while many of these are likely to be background sources, we also find strong evidence for an excess of radio sources in some clusters. The radio spectral index distribution of sources in the cluster cores differs from the background, and shows a bimodal distribution. We tentatively classify the steep-spectrum sources (those much brighter at 5.0GHz) as millisecond pulsars and the flat-spectrum sources as compact or other kinds of binaries. These provisional classifications will be solidified with the future addition of X-ray and optical data. The outer regions of our images represent a deep, relatively wide-field (~0.4deg^2^) and high-resolution C band background survey, and we present source counts calculated for this area. We also release radio continuum images for these 25 clusters to the community.
1158. MAXI/SSC catalog of X-ray sources in 0.7-7.0keV
ID:
ivo://CDS.VizieR/J/PASJ/68/S32
Title:
MAXI/SSC catalog of X-ray sources in 0.7-7.0keV
Short Name:
J/PASJ/68/S32
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the first source catalog of the Solid-state Slit Camera (SSC) of the Monitor of All-sky X-ray Image (MAXI) mission on the International Space Station, using the 45-month data from 2010 August to 2014 April in the 0.7-7.0keV bands. Sources are searched for in two energy bands, 0.7-1.85keV (soft) and 1.85-7.0keV (hard), the limiting sensitivity of 3 and 4mCrab are achieved, and 140 and 138 sources are detected in the soft and hard energy bands, respectively. Combining the two energy bands, 170 sources are listed in the MAXI/SSC catalog. All but 2 sources are identified with 22 galaxies including AGNs, 29 cluster of galaxies, 21 supernova remnants, 75 X-ray binaries, 8 stars, 5 isolated pulsars, and 9 non-categorized objects. Comparing the soft-band fluxes at the brightest end in our catalog with the ROSAT survey, which was performed about 20 years ago, 10% of the cataloged sources are found to have changed flux since the ROSAT era.
1159. M31 Cepheid disk sample of 1st year of PS1
ID:
ivo://CDS.VizieR/J/AJ/145/106
Title:
M31 Cepheid disk sample of 1st year of PS1
Short Name:
J/AJ/145/106
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a sample of Cepheid variable stars towards M31 based on the first year of regular M31 observations of the PS1 survey in the r_P1 and i_P1 filters. We describe the selection procedure for Cepheid variable stars from the overall variable source sample and develop an automatic classification scheme using Fourier decomposition and the location of the instability strip. We find 1440 fundamental mode (classical {delta}) Cep stars, 126 Cepheids in the first overtone mode, and 147 belonging to the Population II types. 296 Cepheids could not be assigned to one of these classes and 354 Cepheids were found in other surveys. These 2009 Cepheids constitute the largest Cepheid sample in M31 known so far and the full catalog is presented in this paper. We briefly describe the properties of our sample in its spatial distribution throughout the M31 galaxy, in its age properties, and we derive an apparent period-luminosity relation (PLR) in our two bands. The Population I Cepheids nicely follow the dust pattern of the M31 disk, whereas the 147 Type II Cepheids are distributed throughout the halo of M31. We outline the time evolution of the star formation in the major ring found previously and find an age gradient. A comparison of our PLR to previous results indicates a curvature term in the PLR.
1160. M33 Chandra ACIS survey: final catalog
ID:
ivo://CDS.VizieR/J/ApJS/193/31
Title:
M33 Chandra ACIS survey: final catalog
Short Name:
J/ApJS/193/31
Date:
21 Oct 2021
Publisher:
CDS
Description:
This study presents the final source catalog of the Chandra ACIS Survey of M33 (ChASeM33). With a total exposure time of 1.4Ms, ChASeM33 covers ~70% of the D_25_ isophote (R~4.0kpc) of M33 and provides the deepest, most complete, and detailed look at a spiral galaxy in X-rays. The source catalog includes 662 sources, reaches a limiting unabsorbed luminosity of ~2.4x10^34^erg/s in the 0.35-8.0keV energy band, and contains source positions, source net counts, fluxes and significances in several energy bands, and information on source variability. To constrain the nature of the detected X-ray source, hardness ratios were constructed and spectra were fit for 254 sources, follow-up MMT spectra of 116 sources were acquired, and cross-correlations with previous X-ray catalogs and other multi-wavelength data were generated. Based on this effort, 183 of the 662 ChASeM33 sources could be identified. Finally, the luminosity function (LF) for the detected point sources as well as the one for the X-ray binaries (XRBs) in M33 is presented. The resulting distribution is consistent with a dominant population of high-mass XRBs as would be expected for M33.

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