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Related papers: SDSS DR7 White Dwarf Catalog

200 papers

SDSS (DR1 and DR2) has recently proposed 7 new DO white dwarfs as well as 6 new PG1159 stars. This is a significant increase in the known number of DOs and PG1159 stars. Our spectral analyses provide stellar parameters which can then be…

Astrophysics · Physics 2016-02-09 S. D. Huegelmeyer , S. Dreizler , K. Werner , A. Nitta , S. J. Kleinman , J. Krzesinski

In this work we study white dwarfs where $30\,000\,\text{K} {>} \mathrm{T}_{\rm{eff}} {>} 5\,000\,\text{K}$ to compare the differences in the cooling of DAs and non-DAs and their formation channels. Our final sample is composed by nearly…

Solar and Stellar Astrophysics · Physics 2018-10-24 G. Ourique , A. D. Romero , S. O. Kepler , D. Koester , L. A. Amaral

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…

Solar and Stellar Astrophysics · Physics 2023-03-01 Olivier Vincent , Pierre Bergeron , Patrick Dufour

We present a catalogue of white dwarf candidates selected from the second data release of $Gaia$ (DR2). We used a sample of spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey (SDSS) to map the entire space spanned by…

This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes 11663 deg^2 of imaging data, with most of…

Astrophysics · Physics 2019-08-14 K. Abazajian

We have conducted a spectroscopic survey of over 1300 bright (V < 17.5), hydrogen-rich white dwarfs based largely on the last published version of the McCook & Sion catalog. The complete results from our survey, including the spectroscopic…

Solar and Stellar Astrophysics · Physics 2015-05-30 Alexandros Gianninas , Pierre Bergeron , Maria Teresa Ruiz

The spectroscopic catalogue of white dwarf-main sequence (WDMS) binaries from the Sloan Digital Sky Survey (SDSS) is the largest and most homogeneous sample of compact binary stars currently known. However, because of selection effects, the…

Solar and Stellar Astrophysics · Physics 2015-06-16 A. Rebassa-Mansergas , C. Agurto-Gangas , M. R. Schreiber , B. T. Gaensicke , D. Koester

The Sloan Digital Sky Survey (SDSS) has scanned the entire region containing the Draco dwarf spheroidal galaxy to 23rd magnitude in g*. We present a catalog of stars found in a 453 square arcminute, elliptical region centered on the Draco…

The Sloan Digital Sky Survey (SDSS), originally targeted at quasi-stellar objects, has provided us with a wealth of astronomical byproducts through the last decade. Since then, the number of white dwarfs (WDs) with physically bound…

Solar and Stellar Astrophysics · Physics 2015-03-19 René Heller , Axel D. Schwope , Roy H. Østensen

In this paper, we report white dwarfs identified in the 5th Data Release of the Large Area Multi-Object fibre Spectroscopic Telescope, including spectral types of DA, DB, DC, DZ, and so on. There are 2 625 DA spectra of 2 281 DA stars, 182…

Solar and Stellar Astrophysics · Physics 2022-01-19 Jincheng Guo , Jingkun Zhao , Huawei Zhang , Jiajun Zhang , Yu Bai , Nikolay Walters , Yong Yang , Jifeng Liu

We present a spectroscopic component analysis of 18 candidate young, wide, non-magnetic, double-degenerate binaries identified from a search of the Sloan Digital Sky Survey Data Release 7 (DR7). All but two pairings are likely to be…

Solar and Stellar Astrophysics · Physics 2015-06-19 R. B. Baxter , P. D. Dobbie , Q. A. Parker , S. L. Casewell , N. Lodieu , M. R. Burleigh , K. A. Lawrie , B. Kulebi , D. Koester , B. R. Holland

We have identified 7 new magnetic DA white dwarfs in the Early Data Release of the Sloan Digital Sky Survey. Our selection strategy has also recovered all the previously known magnetic white dwarfs contained in the SDSS EDR, KUV03292+0035…

Astrophysics · Physics 2009-11-07 B. T. Gaensicke , F. Euchner , S. Jordan

We present a catalog of 857 white dwarf (WD)-M binaries from the sixth data release (DR6) of the Sloan Digital Sky Survey (SDSS), most of which were previously identified. For 636 of them, we complete a spectral analysis and derive the…

Astrophysics · Physics 2014-09-16 René Heller , Derek Homeier , Stefan Dreizler , Roy Østensen

We model the structure of the surface magnetic fields of the hydrogen-rich white dwarfs in the SDSS. We have calculated a grid of state-of-the-art theoretical optical spectra of hydrogen-rich magnetic white dwarfs with magnetic field…

Solar and Stellar Astrophysics · Physics 2015-05-13 B. Kulebi , S. Jordan , F. Euchner , B. Gaensicke , H. Hirsch

We present a catalog of 8545 and 19,257 unique DA white dwarfs observed in SDSS Data Release 19 and previous SDSS data releases, respectively. This is the largest catalog of both spectroscopic and photometric measurements of DA white dwarfs…

We present the preliminary results of a survey aimed at significantly increasing the range and completeness of the local census of spectroscopically confirmed white dwarfs. The current census of nearby white dwarfs is reasonably complete…

Solar and Stellar Astrophysics · Physics 2015-06-15 M. -M. Limoges , S. Lepine , P. Bergeron

We present optical spectroscopy and near-infrared photometry of 126 cool white dwarfs in the Sloan Digital Sky Survey (SDSS). Our sample includes high proper motion targets selected using the SDSS and USNO-B astrometry and a dozen…

We have presented 309 new white-dwarf (WD) + main-sequence (MS) star binaries identified from the Sloan Digital Sky Survey (SDSS) Tenth Data Release (DR10). The majority of them consist of a white dwarf and a low-mass secondary (typically M…

Solar and Stellar Astrophysics · Physics 2015-06-23 Lifang Li , Xiaobo Gong , Fenghui Zhang , Quanwang Han , Xiaoyang Kong

We present a method which uses colour-colour cuts on SDSS photometry to select white dwarfs with hydrogen rich (DA) atmospheres without the recourse to spectroscopy. This method results in a sample of DA white dwarfs that is 95% complete at…

Solar and Stellar Astrophysics · Physics 2012-08-01 J. Girven , B. T. Gaensicke , D. Steeghs , D. Koester