期刊
ASTRONOMY & ASTROPHYSICS
卷 621, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201834236
关键词
subdwarfs; stars: horizontal-branch; catalogs
资金
- European Research Council under the European Unions Horizon 2020 research and innovation programme [677706]
- German Science foundation (DFG) [HE1356/71-1, IR190/1-1]
- NASA [NAS5-26555, NAS5-98034]
- NASA Office of Space Science [NNX13AC07G]
- National Aeronautics and Space Administration
- National Science Foundation
- Robert Martin Ayers Sciences Fund
- VISTA at the ESO Paranal Observatory, programme [179]
- ESO Telescopes at the La Silla Paranal Observatory under programme [177]
- NOVA
- NWO-M
- Department of Physics & Astronomy of the University of Padova
- Department of Physics of Univ. Federico II (Naples)
- STFC [ST/J001333/1]
- Alfred P. Sloan Foundation
- U.S. Department of Energy
- Japanese Monbukagakusho
- Max Planck Society
- Higher Education Funding Council for England
- National Aeronautics and Space Administration [NAS5-26555]
- Italian Council for Research in Astronomy
- European Southern Observatory, Space Telescope European Coordinating Facility
- International GEMINI project
- European Space Agency Astrophysics Division
- U.S. Department of Energy Office of Science
- STFC [ST/L005077/1, ST/P000495/1, ST/P00556X/1, ST/M002047/1] Funding Source: UKRI
Based on data from the ESA Gaia Data Release 2 (DR2) and several ground-based, multi-band photometry surveys we have compiled an all-sky catalogue of 39 800 hot subluminous star candidates selected in Gaia DR2 by means of colour, absolute magnitude, and reduced proper motion cuts. We expect the majority of the candidates to be hot subdwarf stars of spectral type B and O, followed by blue horizontal branch stars of late B-type (HBB), hot post-AGB stars, and central stars of planetary nebulae. The contamination by cooler stars should be about 10%. The catalogue is magnitude limited to Gaia G < 19 mag and covers the whole sky. Except within the Galactic plane and LMC/SMC regions, we expect the catalogue to be almost complete up to about 1.5 kpc. The main purpose of this catalogue is to serve as input target list for the large-scale photometric and spectroscopic surveys which are ongoing or scheduled to start in the coming years. In the long run, securing a statistically significant sample of spectroscopically confirmed hot subluminous stars is key to advance towards a more detailed understanding of the latest stages of stellar evolution for single and binary stars.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据