- ID:
- ivo://CDS.VizieR/IV/27A
- Title:
- HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index
- Short Name:
- IV/27A
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- New Cross Index is constructed on the basis of data analyse of basic catalogs: BSC5 (<V/50>), Hipparcos (<I/196>) and CSI (<IV/9>).The full list of the stars with HD-number and Bayer-Flamsteed designations with later extension of various authors was edited according to printed atlases [1,2,3,4]. Some names of variable stars from these atlases was added to the list. The resulting list was edited after the review and the analyses of star names in catalogue list 'refs.dat'. The DM, GC, HR and HIP numbers were added. The DM numbers were taken from the Henry Draper Catalogue (<III/135>),the GC numbers were taken from General Catalogue of 33342 stars (<I/113>),the HR numbers were taken from BSC5 (<V/50>). Finally the list of proper names of stars was made from information analyses of the atlases [1,2,3,4] and the catalogs BSC5, Hipparcos, CSI and <IV/22>. The right ascensions, declinations and visual magnitudes for all stars were taken from Hipparcos and CSI catalogue if the star has no number in Hipparcos.
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152. HD-DO Cross Index
- ID:
- ivo://CDS.VizieR/IV/13
- Title:
- HD-DO Cross Index
- Short Name:
- IV/13
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This is primarily a machine-readable version of the Dearborn Observatory (DO) Catalogue of Faint Red Stars (Lee et al. 1943, 1944, and 1947, Cat. <II/68>). It is a result of a survey of faint red stars conducted at that observatory from about the mid-1930s to about the mid-1940s. It contained originally for each star, a Dearborn number, 1900 position, red magnitude, Dearborn spectral type and HD spectral type. In this version, the HD number has been added.
- ID:
- ivo://CDS.VizieR/IV/17A
- Title:
- HD,HDE,DM Identifications in Open Clusters
- Short Name:
- IV/17A
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The catalog is a compilation of cross-identifications between the numbering system of Mermilliod (1978) for stars in open clusters and the numbering systems of several other astronomical catalogs, including HR, HD-HDE, DM, LS, LSS, GCVS, IDS, ADS, SAO, and several smaller lists. Also included are files listing the inverse cross-identifications from each catalog to the Mermilliod (1978) numbers. This version updates and expands the version presented by Mermilliod (1976A&AS...23..419M). The catalog is in 13 files: the first file contains the main cross- identification list from the Mermilliod (1978) system to the other catalogs; the next 11 files contain the inverse lists from the catalogs to Mermilliod (1978); and the thirteenth file contains a list of the references adopted for the individual star numberings for each cluster used by the Mermilliod (1978) system.
- ID:
- ivo://CDS.VizieR/IV/25
- Title:
- HD identifications for Tycho-2 stars
- Short Name:
- IV/25
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present identifications in the Tycho-2 Catalogue (<I/259>), for 99.8 per cent of the stars in the Henry Draper Catalogue (<III/135>) and for 96 per cent of the Henry Draper Extensions (<III/135>, <III/182>)
- ID:
- ivo://CDS.VizieR/J/ApJS/184/172
- Title:
- High- and intermediate-mass YSOs in the LMC
- Short Name:
- J/ApJS/184/172
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Archival Spitzer Infrared Array Camera (IRAC) and MIPS observations of the Large Magellanic Cloud (LMC) have been used to search for young stellar objects (YSOs). We have carried out independent aperture photometry of these data and merged the results from different passbands to produce a photometric catalog. To verify our methodology we have also analyzed the data from the SAGE and SWIRE Legacy programs; our photometric measurements are in general agreement with the photometry released by these programs. Using our mid-infrared photometric catalogs and two simple selection criteria, [4.5]-[8.0]>2.0 to exclude normal and evolved stars and [8.0]>14-([4.5]-[8.0]) to exclude background galaxies, we have identified a sample of 2910 sources in the LMC that could potentially be YSOs. We then used the Spitzer observations complemented by optical and near-infrared data to carefully assess the nature of each source. From the examination of the initial sample, we suggest that 1172 sources are most likely YSOs. Spitzer IRS observations of 269 of the brightest YSOs from our sample have confirmed that >~95% are indeed YSOs.
- ID:
- ivo://CDS.VizieR/J/A+A/335/467
- Title:
- High galactic latitude RASS X-ray sources
- Short Name:
- J/A+A/335/467
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a summary of spectroscopic identifications for a complete sample of bright soft high galactic latitude X-ray sources drawn from the ROSAT All-Sky Survey which have PSPC count-rates CR>0.5cts/s and hardness ratios HR1<0. Of a total of 397 sources, 270 had catalogued counterparts although most of these were not previously known as X-ray sources; of the remaining 127 sources neither X-ray nor optical properties were previously known. Of the whole sample of very soft X-ray sources 155 were also discovered by the Wide-Field-Camera on board ROSAT. We present spectroscopic identifications of 108 sources and other identifications for further 18 sources; 1 source remains unidentified so far. In practically all cases a unique optical counterpart exists facilitating identification. The largest source classes are AGN, magnetic cataclysmic variables, and hot white dwarfs.
- ID:
- ivo://CDS.VizieR/J/A+A/347/47
- Title:
- High galactic latitude RASS X-ray sources. II.
- Short Name:
- J/A+A/347/47
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a summary of spectroscopic identifications of bright soft high galactic latitude X-ray sources from the ROSAT All-Sky Survey with total PSPC count rates 0.11<CR<0.5cts/s and hardness ratios HR1<0. This study supplements the identification program of a complete sample of sources with CR>=0.5cts/s presented previously. Spectroscopic identifications are presented for 70 of 77 sources, 5 sources are identified by other means, and subsidiary information is given for 2 as yet unidentified sources. In practically all cases, a unique optical counterpart exists. As for the brighter fraction of the sample, the largest source classes are Seyfert 1 galaxies, magnetic cataclysmic variables, and hot white dwarfs. In the Galactic Pole caps at |b|>400, Seyfert galaxies dominate, whereas at intermediate latitudes galactic objects as magnetic cataclysmic variables and white dwarfs become relatively more frequent.
- ID:
- ivo://CDS.VizieR/J/ApJ/693/8
- Title:
- High-redshift QSOs in the COSMOS survey
- Short Name:
- J/ApJ/693/8
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a new measurement of the space density of high-redshift (z~3.0-4.5), X-ray-selected quasi-stellar objects (QSOs) obtained by exploiting the deep and uniform multiwavelength coverage of the COSMOS survey. We have assembled a large (40 objects), homogeneous sample of z>3 QSOs with X-ray flux F0.5-2keV>10^-15^erg/cm^2^/s, and available spectroscopic (22) or photometric (18) redshifts. We discuss their optical (color-color diagrams) and X-ray properties, their number counts and space densities and compare our findings with previous works and model predictions.
- ID:
- ivo://CDS.VizieR/J/ApJS/209/12
- Title:
- High-velocity clouds from GASS. I.
- Short Name:
- J/ApJS/209/12
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalog of high-velocity clouds (HVCs) from the Galactic All Sky Survey (GASS) of southern sky neutral hydrogen, which has 57mK sensitivity and 1 km/s velocity resolution and was obtained with the Parkes Telescope. Our catalog has been derived from the stray-radiation-corrected second release of GASS. We describe the data and our method of identifying HVCs and analyze the overall properties of the GASS population. We catalog a total of 1693 HVCs at declinations <0{deg}, including 1111 positive velocity HVCs and 582 negative velocity HVCs. Our catalog also includes 295 anomalous velocity clouds (AVCs). The cloud line-widths of our HVC population have a median FWHM of ~19 km/s, which is lower than that found in previous surveys. The completeness of our catalog is above 95% based on comparison with the HIPASS catalog of HVCs upon which we improve by an order of magnitude in spectral resolution. We find 758 new HVCs and AVCs with no HIPASS counterpart. The GASS catalog will shed unprecedented light on the distribution and kinematic structure of southern sky HVCs, as well as delve further into the cloud populations that make up the anomalous velocity gas of the Milky Way.
- ID:
- ivo://CDS.VizieR/J/ApJ/868/70
- Title:
- Hot subdwarf stars from Gaia DR2 and LAMOST DR5
- Short Name:
- J/ApJ/868/70
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We selected 4593 hot subdwarf candidates from the Gaia DR2 Hertzsprung-Russell (HR) diagram. By combining the sample with Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) DR5, we identified 294 hot subdwarf stars, including 169 sdB, 63 sdOB, 31 He-sdOB, 22 sdO, 7 He-sdO, and 2 He-sdB stars. The atmospheric parameters (e.g., Teff, logg, log(nHe/nH)) are obtained by fitting the hydrogen (H) and helium (He) line profiles with synthetic spectra. Two distinct He sequences of hot subdwarf stars are clearly presented in the Teff-logg diagram. We found that the He-rich sequence consists of the bulk of sdB and sdOB stars, as well as all of the He-sdB, He-sdO, and He-sdOB stars in our samples, while all the stars in the He-weak sequence belong to the sdO spectral type, combined with a few sdB and sdOB stars. We demonstrated that the combination of Gaia DR2 and LAMOST DR5 allows one to uncover a huge number of new hot subdwarf stars in our Galaxy.
