- ID:
- ivo://CDS.VizieR/J/MNRAS/348/1439
- Title:
- OGLE II Galactic center proper motions
- Short Name:
- J/MNRAS/348/1439
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a proper-motion catalogue of 5080236 stars in 49 Optical Gravitational Lensing Experiment II (OGLE-II) Galactic bulge (GB) fields, covering a range of -11{deg}<l<11{deg} and -6{deg}<b<3{deg}, the total area close to 11deg^2^. The proper-motion measurements are based on 138-555 I-band images taken during four observing seasons: 1997-2000. The catalogue stars are in the magnitude range 11<I<18mag. In particular, the catalogue includes red clump giants and red giants in the GB, and main-sequence stars in the Galactic disc. The proper motions up to pm=500mas/yr were measured with a mean accuracy of 0.8-3.5mas/yr, depending on the brightness of a star. This catalogue may be useful for studying the kinematics of stars in the GB and the Galactic disc.
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Search Results
- ID:
- ivo://CDS.VizieR/II/322
- Title:
- OGLE-III. Magellanic Clouds stellar proper motions
- Short Name:
- II/322
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalog of over 6.2million stars with measured proper motions. All these stars are observed in the direction of the Magellanic Clouds within the brightness range 12<I<19mag. Based on these proper motions about 440000 Galactic foreground stars can be selected. Because the proper motions are based on a few hundred epochs collected during eight years, their statistical uncertainties are below 0.5mas/yr for stars brighter than I=18.5mag. The parallaxes are derived with uncertainties down to 1.6mas. For above 13000 objects parallaxes are derived with significance above 3{sigma}, which allows selecting about 270 white dwarfs (WDs). The search for common proper motion binaries among stars presented was performed resulting in over 500 candidate systems. The most interesting ones are candidate halo main sequence star-WD and WD-WD systems. The application of the catalog to the empirically bound Cepheid instability strip is also discussed.
- ID:
- ivo://CDS.VizieR/J/AcA/52/217
- Title:
- OGLE II. VI photometry of Galactic Bulge
- Short Name:
- J/AcA/52/217
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the VI photometric maps of the Galactic bulge. They contain VI photometry and astrometry of about 30 million stars from 49 fields of 0.225 square degree each in the Galactic center region. The data were collected during the second phase of the OGLE microlensing project. We discuss the accuracy of data and present color-magnitude diagrams of selected fields observed by OGLE in the Galactic bulge. The VI maps of the Galactic bulge are accessible electronically for the astronomical community from the OGLE Internet archive
- ID:
- ivo://CDS.VizieR/J/AcA/63/1
- Title:
- OGLE-IV Magellanic Bridge Data supernovae
- Short Name:
- J/AcA/63/1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We analyze two years (mid-2010 to mid-2012) of OGLE-IV data covering ~65deg^2^ of the Magellanic Bridge (the area between the Magellanic Clouds) and find 130 transient events including 126 supernovae (SNe), two foreground dwarf novae and another two SNe-like transients that turned out to be active galactic nuclei (AGNs). We show our SNe detection efficiency as a function of SN peak magnitude based on available SNe rate estimates. It is 100% for SNe peak magnitudes I<18.8mag and drops to 50% at I~19.7mag. With our current observing area between and around the Magellanic Clouds (~600deg^2^), we expect to find 24 SNe peaking above I<18mag, 100 above I<19mag, and 340 above I<20mag, annually. We briefly introduce our on-line near-real-time detection system for SNe and other transients, the OGLE Transient Detection System.
1265. OGLE LMC BVI photometry
- ID:
- ivo://CDS.VizieR/J/AcA/50/307
- Title:
- OGLE LMC BVI photometry
- Short Name:
- J/AcA/50/307
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the BVI photometric maps of the Large Magellanic Cloud. They contain BVI photometry and astrometry of more than 7 million stars from the central parts of the LMC. The data were collected during the second phase of the OGLE microlensing project. We discuss the accuracy of the data and present color-magnitude diagrams of all 26 fields observed by OGLE in the LMC. The BVI maps of the LMC are accessible electronically for the astronomical community from the OGLE Internet archive.
1266. OGLE SMC BVI photometry
- ID:
- ivo://CDS.VizieR/J/AcA/48/147
- Title:
- OGLE SMC BVI photometry
- Short Name:
- J/AcA/48/147
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present three color, BVI maps of the Small Magellanic Cloud. The maps contain precise photometric and astrometric data for about 2.2million stars from the central regions of the SMC bar covering ~2.4 square degrees on the sky. Mean brightness of stars is derived from observations collected in the course of the OGLE-II microlensing search from about 130, 30 and 15 measurements in the I, V and B-bands, respectively. Accuracy of the zero points of photometry is about 0.01mag, and astrometry 0.15arcsec (with possible systematic error up to 0.7arcsec). Color magnitude diagrams of observed fields are also presented. The maps of the SMC are the first from the series of similar maps covering other OGLE fields: LMC, Galactic bulge and Galactic disk. The data are very well suited for many projects, particularly for the SMC which has been neglected photometrically for years.
- ID:
- ivo://CDS.VizieR/J/A+A/394/975
- Title:
- OH 5-cm line survey in late-type stars
- Short Name:
- J/A+A/394/975
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We have undertaken a comprehensive search for 5-cm excited OH maser emission from evolved stars representative of various stages of late stellar evolution. Observed sources were selected from known 18-cm OH sources. This survey was conducted with the 100-m Effelsberg telescope, at 6.0GHz in Sep 2000, to achieve high signal to noise ratio observations and a sensitivity limit of about 0.05 to 0.1Jy. A total of 65 stellar sources were searched for both main line and satellite line emission. We confirm the previous detection of 5 cm OH in Vy 2-2, do not confirm emission from NML-Cyg and do not report any other new detection within the above sensitivity limit. The number of observed sources is 67.
- ID:
- ivo://CDS.VizieR/J/AJ/124/100
- Title:
- OH megamasers at z>0.1. III
- Short Name:
- J/AJ/124/100
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the final results from the Arecibo Observatory OH megamaser survey. We discuss in detail the properties of the remaining 18 OH megamasers detected in the survey, including three redetections. We place upper limits on the OH emission from 85 nondetections and examine the properties of 25 ambiguous cases for which the presence or absence of OH emission could not be determined. The complete survey has discovered 50 new OH megamasers (OHMs) in (ultra)luminous infrared galaxies ([U]LIRGs), which doubles the sample of known OHMs and increases the sample at z>0.1 sevenfold.
- ID:
- ivo://CDS.VizieR/J/ApJS/172/456
- Title:
- [OII] emitting galaxies in COSMOS & SDF fields
- Short Name:
- J/ApJS/172/456
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We have carried out a wide-field imaging survey for [OII] {lambda}3727 emitting galaxies at z~1.2 in the HST COSMOS 2 square degree field using the Suprime-Cam on the Subaru Telescope. The survey covers a sky area of 6700arcmin^2^ in the COSMOS field, and a redshift range between 1.17 and 1.20 ({Delta}z=0.03), corresponding to a survey volume of 5.56x10^5^Mpc^3^. We obtain a sample of 3176 [OII] emitting galaxies with observed emission-line equivalent widths greater than 26{AA}. Since our survey tends to sample brighter [OII] emitting galaxies, we also analyze a sample of fainter [OII] emitting galaxies found in the Subaru Deep Field (SDF). We find an extinction-corrected [OII] luminosity density of 10Exp(40.35^+0.08^_-0.06_)^erg/s/Mpc^3^, corresponding to star formation rate density of 0.32^+0.06^_-0.04_ M_{sun}_/yr/Mpc^3^ in the COSMOS field at z~1.2. This is the largest survey for [OII] emitters beyond z=1 currently available.
- ID:
- ivo://CDS.VizieR/J/ApJ/799/205
- Title:
- [OII] emitting galaxies in the HETDEX survey
- Short Name:
- J/ApJ/799/205
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) pilot survey identified 284 [OII]{lambda}3727 emitting galaxies in a 169arcmin^2^ field of sky in the redshift range 0<z<0.57. This line flux limited sample provides a bridge between studies in the local universe and higher-redshift [OII] surveys. We present an analysis of the star formation rates (SFRs) of these galaxies as a function of stellar mass as determined via spectral energy distribution fitting. The [OII] emitters fall on the "main sequence" of star-forming galaxies with SFR decreasing at lower masses and redshifts. However, the slope of our relation is flatter than that found for most other samples, a result of the metallicity dependence of the [OII] star formation rate indicator. The mass-specific SFR is higher for lower mass objects, supporting the idea that massive galaxies formed more quickly and efficiently than their lower mass counterparts. This is confirmed by the fact that the equivalent widths of the [OII] emission lines trend smaller with larger stellar mass. Examination of the morphologies of the [OII] emitters reveals that their star formation is not a result of mergers, and the galaxies' half-light radii do not indicate evolution of physical sizes.
