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Title: Data-driven selection and spectral classification of white dwarf stars

Journal Article · · Monthly Notices of the Royal Astronomical Society

ABSTRACT The next generation of spectroscopic surveys is expected to provide spectra for hundreds of thousands of white dwarf (WD) candidates in the upcoming years. Currently, spectroscopic classification of white dwarfs is mostly done by visual inspection, requiring substantial amounts of expert attention. We propose a data-driven pipeline for fast, automatic selection, and spectroscopic classification of WD candidates, trained using spectroscopically confirmed objects with available Gaia astrometry, photometry, and Sloan Digital Sky Survey (SDSS) spectra with signal-to-noise ratios ≥9. The pipeline selects WD candidates with improved accuracy and completeness over existing algorithms, classifies their primary spectroscopic type with $${\gtrsim}90\ \hbox{per cent}$$ accuracy, and spectroscopically detects main sequence companions with similar performance. We apply our pipeline to the Gaia Data Release 3 cross-matched with the SDSS Data Release 17 (DR17), identifying 424 096 high-confidence WD candidates and providing the first catalogue of automated and quantifiable classification for 36 523 WD spectra. Both the catalogue and pipeline are made available online. Such a tool will prove particularly useful for the undergoing SDSS-V survey, allowing for rapid classification of thousands of spectra at every data release.

Sponsoring Organization:
USDOE
OSTI ID:
1960326
Journal Information:
Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Vol. 521 Journal Issue: 1; ISSN 0035-8711
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (51)

Application of convolutional neural networks for stellar spectral classification journal November 2019
A catalogue of white dwarfs in Gaia EDR3 journal September 2021
The SIMBAD astronomical database: The CDS reference database for astronomical objects journal April 2000
Spectrophotometric analysis of magnetic white dwarf – I. Hydrogen-rich compositions journal January 2023
The ELM Survey South. I. An Effective Search for Extremely Low Mass White Dwarfs journal May 2020
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe journal June 2017
White dwarf–main-sequence binaries from Gaia EDR3: the unresolved 100 pc volume-limited sample journal July 2021
Astronomia ex machina: a history, primer, and outlook on neural networks in astronomy preprint January 2022
Why M Heads are Better than One: Training a Diverse Ensemble of Deep Networks preprint January 2015
Measurements of Physical Parameters of White Dwarfs: A Test of the Mass–Radius Relation journal October 2017
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data journal March 2022
A proposed new white dwarf spectral classification system journal June 1983
The Payne : Self-consistent ab initio Fitting of Stellar Spectra journal July 2019
New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12 journal November 2015
The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra journal June 2020
An Initial Survey of White Dwarfs in the Sloan Digital Sky Survey journal August 2003
The SDSS spectroscopic catalogue of white dwarf-main-sequence binaries: new identifications from DR 9–12 journal March 2016
Hot DQ White Dwarfs: Something Different journal August 2008
Two White Dwarfs with Oxygen-Rich Atmospheres journal November 2009
The ELM Survey. IX. A Complete Sample of Low-mass White Dwarf Binaries in the SDSS Footprint journal July 2022
The population of hot subdwarf stars studied withGaia journal March 2020
Gaia Early Data Release 3: Photometric content and validation journal April 2021
The Pan-STARRS1 Surveys preprint January 2016
Do We Need More Training Data? text January 2015
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) journal August 2012
The Two Micron All Sky Survey (2MASS) journal February 2006
White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 16 journal August 2021
A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4
  • Eisenstein, Daniel J.; Liebert, James; Harris, Hugh C.
  • The Astrophysical Journal Supplement Series, Vol. 167, Issue 1 https://doi.org/10.1086/507110
journal November 2006
Computational tools for the spectroscopic analysis of white dwarfs journal July 2020
Explaining and Harnessing Adversarial Examples preprint January 2014
J-PLUS: Spectral evolution of white dwarfs by PDF analysis journal February 2022
The Gaia mission journal November 2016
Deep Ensembles: A Loss Landscape Perspective preprint January 2019
Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars journal April 2021
Missing Metals in DQ Stars; a Compelling Clue to their Origin preprint January 2022
Deep Neural Networks are Easily Fooled: High Confidence Predictions for Unrecognizable Images preprint January 2014
White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 14 journal April 2019
Sdss dr7 White Dwarf Catalog journal December 2012
Carbon-rich (DQ) white dwarfs in the Sloan Digital Sky Survey journal August 2019
The population of hot subdwarf stars studied with Gaia : I. The catalog of known hot subdwarf stars⋆ journal March 2017
Simultaneous calibration of spectro-photometric distances and the Gaia DR2 parallax zero-point offset with deep learning journal August 2019
Can You Trust Your Model's Uncertainty? Evaluating Predictive Uncertainty Under Dataset Shift preprint January 2019
A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey journal May 2004
Adam: A Method for Stochastic Optimization preprint January 2014
On the Spectral Evolution of Hot White Dwarf Stars. III. The PG 1159–DO–DB–DQ Evolutionary Channel Revisited journal April 2022
Analysis of Helium-rich White Dwarfs Polluted by Heavy Elements in the Gaia Era journal November 2019
The 2.5 m Telescope of the Sloan Digital Sky Survey journal April 2006
New white dwarf stars in the Sloan Digital Sky Survey Data Release 10 journal December 2014
Hot Degenerates in the MCT Survey. III. A Sample of White Dwarf Stars in the Southern Hemisphere journal October 2021
SDSS-V: Pioneering Panoptic Spectroscopy preprint January 2017
Unresolved stellar companions with Gaia DR2 astrometry journal June 2020

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