- ID:
- ivo://org.gavo.dc/gdr2dist/q/cone
- Title:
- Estimated distances to 1.33 billion stars in Gaia DR2
- Short Name:
- gdr2dist scs
- Date:
- 04 Apr 2022 15:48:41
- Publisher:
- The GAVO DC team
- Description:
- This catalogue provides distances estimates (and uncertainties therein) for 1.33 billion stars over the whole sky brighter than about G=20.7. These have been estimated using the parallaxes (and their uncertainties) from Gaia DR2. A Bayesian procedure was used involving a prior with a single parameter L(l,b), which varies smoothly with Galactic longitude and latitude according to a Galaxy model. The posterior is summarized with a point estimate (usually the mode) and a confidence interval (usually the 68% highest density interval). The estimation procedure is described in detail in the `accompanying paper`_, which also analyses the catalogue content. .. _accompanying paper: http://www.mpia.de/homes/calj/gdr2_distances.html
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- ID:
- ivo://org.gavo.dc/gedr3dist/q/cone
- Title:
- Gaia DR3 Lite Distances Subset Cone Search
- Short Name:
- DR3 lite+dist
- Date:
- 29 Aug 2022 10:46:03
- Publisher:
- The GAVO DC team
- Description:
- This service returns the most important Gaia DR3 gaia_source columns together with robust geometric and photogeometric distances for the ~1.47 billion objects in Bailer-Jones et al's distance catalogue.
- ID:
- ivo://org.gavo.dc/lamost6/q/svc_lrs
- Title:
- LAMOST DR6 Low Resolution Spectra
- Short Name:
- LM6 LRS SSAP
- Date:
- 30 May 2022 13:40:13
- Publisher:
- The GAVO DC team
- Description:
- A machine-readable interface to the LAMOST6 low resolution spectra based on SSAP and datalink.
- ID:
- ivo://org.gavo.dc/lamost6/q/svc_mrs
- Title:
- LAMOST DR6 Medium Resolution Spectra
- Short Name:
- LM6 MRS SSAP
- Date:
- 30 May 2022 13:40:13
- Publisher:
- The GAVO DC team
- Description:
- A machine-readable interface to the LAMOST6 medium resolution spectra based on SSAP and datalink.
- ID:
- ivo://org.gavo.dc/life/q/cone
- Title:
- LIFE Target Database Cone Search
- Short Name:
- life_td cone
- Date:
- 22 Mar 2024 00:45:16
- Publisher:
- The GAVO DC team
- Description:
- The LIFE Target Star Database contains information useful for the planned `LIFE mission`_ (mid-ir, nulling interferometer in space). It characterizes possible target systems including information about stellar, planetary and disk properties. The data itself is mainly a collection from different other catalogs. Note that LIFE's target database is living data. The content – and to some extent even structure – of these tables may change at any time without prior warning. .. _LIFE mission: https://life-space-mission.com/
- ID:
- ivo://org.gavo.dc/gps1/q/cone
- Title:
- The Gaia-PS1-SDSS (GPS1) Proper Motion Catalog
- Short Name:
- GPS1
- Date:
- 23 Mar 2022 13:13:03
- Publisher:
- The GAVO DC team
- Description:
- This catalog combines Gaia DR1, Pan-STARRS 1, SDSS and 2MASS astrometry to compute proper motions for 350 million sources across three-fourths of the sky down to a magnitude of mr≈20. Positions of galaxies from Pan-STARRS 1 are used to build a reference frame for PS1, SDSS, and 2MASS data. Gaia DR1 is adapted to that reference frame by exploiting that locally, proper motions are linear. GPS1 has a characteristic systematic error of less than 0.3 mas/yr, and a typical precision of 1.5−2.0 mas/yr. The proper motions have been validated using galaxies, open clusters, distant giant stars and QSOs. In comparison with other published faint proper motion catalogs, GPS1's systematic error (<0.3 mas/yr) is about 10 times better than that of PPMXL and UCAC4 (>2.0 mas/yr). Similarly, its precision (~1.5 mas/yr) is an improvement by ∼ 4 times relative to PPMXL and UCAC4 (∼6.0 mas/yr). For QSOs, the precision of GPS1 is found to be worse (∼2.0−3.0 mas/yr), possibly due to their particular differential chromatic refraction (DCR).
- ID:
- ivo://org.gavo.dc/hsoy/q/q
- Title:
- The HSOY Catalog
- Short Name:
- HSOY SCS
- Date:
- 23 Mar 2022 13:13:13
- Publisher:
- The GAVO DC team
- Description:
- HSOY is a catalog of 583'001'653 objects with precise astrometry based on PPMXL and Gaia DR1. Typical formal errors at mean epoch in proper motion are below 1 mas/yr for objects brighter than 10 mag, and about 5 mas/yr at the faint end (about 20 mag). South of -30 degrees, astrometry is significantly worse. HSOY also contains, where available, USNO-B, Gaia, and 2MASS photometry. HSOY's positions and proper motions are given for epoch J2000. The catalog becomes severely incomplete faintwards of 16 mag in the G-band. The mean epochs are typically very close to Gaia's J2015. HSOY still contains about 0.7% spurious close "binaries" (non-matched stars) from the original USNO-B (marked with non-NULL clone). Also, failed matches within Gaia DR1 contribute another 1.5% spurious pairs (marked with non-NULL comp). In both cases, astrometry presumably is sub-standard. More information is available at http://dc.g-vo.org/hsoy.