The Gaia–WISE Extragalactic Astrometric Catalog
| dc.contributor.author | Paine, Jennie | |
| dc.contributor.author | Darling, Jeremy | |
| dc.contributor.author | Truebenbach, Alexandra | |
| dc.date.accessioned | 2024-04-08T20:31:28Z | |
| dc.date.available | 2024-04-08T20:31:28Z | |
| dc.date.issued | 2018-06-01 | |
| dc.description.abstract | The Gaia mission has detected a large number of active galactic nuclei (AGNs) and galaxies, but these objects must be identified among the thousandfold more numerous stars. Extant astrometric AGN catalogs do not have the uniform sky coverage required to detect and characterize the all-sky, low-multipole proper motion signals produced by the barycenter motion, gravitational waves, and cosmological effects. To remedy this, we present an all-sky sample of 567,721 AGNs in Gaia Data Release 1, selected using WISE two-color criteria. The catalog has fairly uniform sky coverage beyond the Galactic plane, with a mean density of 12.8 AGNs per square degree. The objects have magnitudes ranging from G = 8.8 down to Gaia's magnitude limit, G = 20.7. The catalog is approximately 50% complete but suffers from low stellar contamination, roughly 0.2%. We predict that the end-of-mission Gaia proper motions for this catalog will enable detection of the secular aberration drift to high significance (23σ) and will place an upper limit on the anisotropy of the Hubble expansion of about 2%. | |
| dc.description.sponsorship | The authors thank the anonymous referee for helpful feedback. The authors acknowledge support from the NSF grant AST-1411605 and the NASA grant 14-ATP14-0086. This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The SDSS-III web site is http://www.sdss3.org/. SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS-III Collaboration including the University of Arizona, the Brazilian Participation Group, Brookhaven National Laboratory, Carnegie Mellon University, University of Florida, the French Participation Group, the German Participation Group, Harvard University, the Instituto de Astrofisica de Canarias, the Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for Extraterrestrial Physics, New Mexico State University, New York University, Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, the Spanish Participation Group, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, and Yale University. 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. | |
| dc.description.uri | https://iopscience.iop.org/article/10.3847/1538-4365/aabe2d | |
| dc.format.extent | 9 pages | |
| dc.genre | journal articles | |
| dc.identifier | doi:10.13016/m2chkp-udyc | |
| dc.identifier.citation | Paine, Jennie, Jeremy Darling, and Alexandra Truebenbach. “The Gaia–WISE Extragalactic Astrometric Catalog.” The Astrophysical Journal Supplement Series 236, no. 2 (June 2018): 37. https://doi.org/10.3847/1538-4365/aabe2d. | |
| dc.identifier.uri | https://doi.org/10.3847/1538-4365/aabe2d | |
| dc.identifier.uri | http://hdl.handle.net/11603/32933 | |
| dc.publisher | AAS | |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.title | The Gaia–WISE Extragalactic Astrometric Catalog | |
| dc.type | Text | |
| dcterms.creator | https://orcid.org/0000-0002-7517-9223 |