White dwarf-main sequence binaries from LAMOST: the DR5 catalogue
arXiv:1803.09523 · doi:10.1093/mnras/sty805
Abstract
We present the data release (DR) 5 catalogue of white dwarf-main sequence (WDMS) binaries from the Large Area Multi-Object fiber Spectroscopic Telescope (LAMOST). The catalogue contains 876 WDMS binaries, of which 757 are additions to our previous LAMOST DR1 sample and 357 are systems that have not been published before. We also describe a LAMOST-dedicated survey that aims at obtaining spectra of photometrically-selected WDMS binaries from the Sloan Digital Sky Survey (SDSS) that are expected to contain cool white dwarfs and/or early type M dwarf companions. This is a population under-represented in previous SDSS WDMS binary catalogues. We determine the stellar parameters (white dwarf effective temperatures, surface gravities and masses, and M dwarf spectral types) of the LAMOST DR5 WDMS binaries and make use of the parameter distributions to analyse the properties of the sample. We find that, despite our efforts, systems containing cool white dwarfs remain under-represented. Moreover, we make use of LAMOST DR5 and SDSS DR14 (when available) spectra to measure the Na I λλ 8183.27, 8194.81 absorption doublet and/or Hα emission radial velocities of our systems. This allows identifying 128 binaries displaying significant radial velocity variations, 76 of which are new. Finally, we cross-match our catalogue with the Catalina Surveys and identify 57 systems displaying light curve variations. These include 16 eclipsing systems, two of which are new, and nine binaries that are new eclipsing candidates. We calculate periodograms from the photometric data and measure (estimate) the orbital periods of 30 (15) WDMS binaries.
14 pages, 10 figures, accepted for publication on MNRAS
References in corpus (33)
- The Catalina Surveys Periodic Variable Star Catalog
- Hot subluminous stars
- Post-common-envelope binaries from SDSS. IX: Constraining the common-envelope efficiency
- New white dwarf stars in the Sloan Digital Sky Survey Data Release 10
- Binary Planetary Nebulae Nuclei towards the Galactic Bulge. I. Sample Discovery, Period Distribution and Binary Fraction
- Post Common Envelope Binaries from SDSS. I: 101 white dwarf main sequence binaries with multiple SDSS spectroscopy
- LAMOST Spectroscopic Survey of the Galactic Anti-centre (LSS-GAC): target selection and the first release of value-added catalogues
- Testing the white dwarf mass-radius relationship with eclipsing binaries
- Monte Carlo simulations of post-common-envelope white dwarf + main sequence binaries: comparison with the SDSS DR7 observed sample
- Effective Temperatures of Cataclysmic Variable White Dwarfs as a Probe of their Evolution
- LAMOST Spectroscopic Survey of the Galactic Anticentre (LSS-GAC): the second release of value-added catalogues
- The SDSS spectroscopic catalogue of white dwarf-main sequence binaries: new identifications from DR9-12
- Post Common Envelope Binaries from SDSS. V: Four eclipsing white dwarf main sequence binaries
- Monte Carlo simulations of post-common-envelope white dwarf + main sequence binaries: The effects of including recombination energy
- Long-term eclipse timing of white dwarf binaries: an observational hint of a magnetic mechanism at work
- Post Common Envelope Binaries from SDSS - III. Seven new orbital periods
- Fourteen new eclipsing white dwarf plus main-sequence binaries from the SDSS and Catalina surveys
- The population of white dwarf-main sequence binaries in the SDSS DR 12
- SDSS White Dwarf mass distribution at low effective temperatures
- Post common envelope binaries from SDSS. II: Identification of 9 close binaries with VLT/FORS2
- Post common envelope binaries from SDSS. IV: SDSSJ121258.25-012310.1, a new eclipsing system
- The kinematics of the white dwarf population from the SDSS DR12
- The age-metallicity relation in the solar neighbourhood from a pilot sample of white dwarf-main sequence binaries
- White dwarf-main sequence binaries from LAMOST: the DR1 catalogue
- Using large spectroscopic surveys to test the double degenerate model for Type Ia supernovae
- An independent test of the photometric selection of white dwarf candidates using LAMOST DR3
- Orbital periods and component masses of three double white dwarfs
- Discovery of eclipsing white dwarf systems in a search for Earth-size companions
- White-dwarf+main-sequence binaries identified from the tenth data release of Solan Digital Sky Survey
- Discovery of ZZ Cetis in detached white dwarf plus main-sequence binaries
- The critical binary star separation for a planetary system origin of white dwarf pollution
- Activity and Kinematics of White Dwarf-M Dwarf Binaries from the SUPERBLINK Proper Motion Survey
- A Gemini Snapshot Survey for Double Degenerates
Cited by in corpus (25)
- The scatter of the M dwarf mass-radius relationship
- White dwarf-main sequence binaries from Gaia EDR3: the unresolved 100pc volume-limited sample
- Detections of solar-like oscillations in dwarfs and subgiants with Kepler DR25 short-cadence data
- The white dwarf binary pathways survey V. The Gaia white dwarf plus AFGK binary sample and the identification of 23 close binaries
- The CARMENES search for exoplanets around M dwarfs: Spectroscopic orbits of nine M-dwarf multiple systems, including two triples, two brown dwarf candidates, and one close M-dwarf-white dwarf binary
- Compact Object Candidates with K/M-dwarf Companions from LAMOST Low-resolution Survey
- An in-depth exploration of LAMOST Unknown spectra based on density clustering
- Recognition of M-type stars in the unclassified spectra of LAMOST DR5 using a hash learning method
- White dwarf binaries Across the H-R Diagram
- Discovery of a pre-cataclysmic binary with unusual chromaticity of the eclipsed white dwarf by the GPX Survey
- On the radial velocity calibrations in the LAMOST Medium-Resolution Spectroscopic Survey of Nebulae
- Hunting Down White Dwarf--Main Sequence Binaries Using Multi-Wavelength Observations
- Random Forest classification of Gaia DR3 white dwarf-main sequence spectra: a feasibility study
- A White Dwarf-Main Sequence Binary Unveiled by Time-Domain Observations from LAMOST and TESS
- Searching for compact objects in binaries with Gaia DR3
- Searching for Compact Object Candidates from LAMOST Time-Domain Survey of Four K2 Plates
- Stellar X-ray activity and habitability revealed by ROSAT sky survey
- The Data Processing of the LAMOST Medium-Resolution Spectral Survey of Galactic Nebulae (LAMOST MRS-N Pipeline)
- A magnitude-limited catalogue of unresolved white dwarf-main sequence binaries from Gaia DR3
- Study on Outliers in the Big Stellar Spectral Dataset of the Fifth Data Release (DR5) of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST)
- Analysis of Previously Classified White Dwarf-Main Sequence Binaries Using Data from the APOGEE Survey
- Searching for Magnetic White Dwarfs in LAMOST DR10
- A new code for low-resolution spectral identification of white dwarf binary candidates
- J-PLUS: Understanding outlier white dwarfs in the third data release via dimensionality reduction
- Discovery and Characterization of White Dwarf-FGK Main-Sequence Binaries within the Optical Main-Sequence Locus