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White dwarf-main sequence (WDMS) binary systems are essential probes for understanding binary stellar evolution and play a pivotal role in constraining theoretical models of various transient phenomena. In this study, we construct a catalog…

Solar and Stellar Astrophysics · Physics 2025-02-06 Jiadong Li , Yuan-Sen Ting , Hans-Walter Rix , Gregory M. Green , David W. Hogg , Juan-Juan Ren , Johanna Müller-Horn , Rhys Seeburger

The photometry from 2MASS, UCAC3 and SuperCosmos catalogues together with the proper motions from the Tycho-2, XPM and UCAC3 catalogues are used to select the all-sky samples of 34 white dwarfs, 1996 evolved and 7769 unevolved subdwarfs…

Solar and Stellar Astrophysics · Physics 2015-05-18 George A. Gontcharov , Anisa T. Bajkova , Peter N. Fedorov , Vladimir S. Akhmetov

We present the fourth data release of JADES, the JWST Advanced Deep Extragalactic Survey, providing deep spectroscopic observations in the two GOODS fields. A companion paper presents the target selection, spectroscopic redshifts and…

We construct from Gaia eDR3 an extensive catalog of spatially resolved binary stars within $\approx$ 1 kpc of the Sun, with projected separations ranging from a few au to 1 pc. We estimate the probability that each pair is a chance…

Solar and Stellar Astrophysics · Physics 2021-02-17 Kareem El-Badry , Hans-Walter Rix , Tyler M. Heintz

We assembled a catalogue of bright, hot subdwarf and white dwarf stars extracted from a joint ultraviolet, optical, and infrared source list. The selection is secured using colour criteria that correlate well with effective temperatures…

Solar and Stellar Astrophysics · Physics 2015-05-19 S. Vennes , A. Kawka , P. Nemeth

We present a homogeneous sample of 1361 L and T dwarfs brighter than J = 17.5 (of which 998 are new), from an effective area of 3070 deg2, classified by the photo-type method to an accuracy of one spectral sub-type using izYJHKW1W2…

Instrumentation and Methods for Astrophysics · Physics 2016-04-13 N. Skrzypek , S. J. Warren , J. K. Faherty

The Beijing-Arizona Sky Survey (BASS) Data Release 3 (DR3) catalogue was released in 2019, which contains the data from all BASS and the Mosaic z-band Legacy Survey (MzLS) observations during 2015 January and 2019 March, about 200 million…

Context. In modern astronomy, machine learning has proved to be efficient and effective to mine the big data from the newesttelescopes. Spectral surveys enable us to characterize millions of objects, while long exposure time observations…

The Gaia data release 2 (DR2) contains $>$6000 objects with parallaxes $(Plx+3\times{e\_Plx})>50$mas placing them within 20pc from the Sun. Since the expected numbers extrapolating the well-known 10pc census are much lower, nearby Gaia…

Solar and Stellar Astrophysics · Physics 2020-05-13 Ralf-Dieter Scholz

We review the available near- and mid-infrared photometry for white dwarfs obtained from the Two Micron All-Sky Survey (2MASS) and by the Spitzer Space Telescope. Both data sets have recently been used to seek white dwarfs with infrared…

Astrophysics · Physics 2008-11-26 P. -E. Tremblay , P. Bergeron

AIMS: With our low-resolution spectroscopic observing program for selected blue proper motion stars, we tried to find new white dwarfs (WDs) in the solar neighbourhood. METHODS: We used the LSPM catalogue with a lower proper motion limit of…

Solar and Stellar Astrophysics · Physics 2018-11-07 R. -D. Scholz , H. Meusinger , A. Schwope , H. Jahreiß , I. Pelisoli

Gaia Early Data Release 3 contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the ESA Gaia satellite during the first 34 months of operations. This paper focuses on the photometric…

Galactic short-period close white dwarf binaries (CWDBs) are important objects for space-borne gravitational-wave (GW) detectors in the millihertz frequency bands. Due to the intrinsically low luminosity, only about 25 identified CWDBs are…

Solar and Stellar Astrophysics · Physics 2023-02-07 Liangliang Ren , Chengyuan Li , Bo Ma , Sihao Cheng , Shun-Jia Huang , Baitian Tang , Yi-ming Hu

(Shortened). In the era of large surveys and space missions, it is necessary to rely on large samples of well-characterized stars for inter-calibrating and comparing measurements from different sources. Among the most employed photometric…

Solar and Stellar Astrophysics · Physics 2022-08-17 E. Pancino , P. M. Marrese , S. Marinoni , N. Sanna , A. Turchi , M. Tsantaki , M. Rainer , G. Altavilla , M. Monelli , L. Monaco

We present a catalogue of 1602 white dwarf-main sequence binaries (WDMS) from the spectroscopic Sloan Digital Sky Survey Data Release 6 (SDSS DR6). Among these we identify 440 as new WDMS binaries. We select WDMS binary candidates from…

Solar and Stellar Astrophysics · Physics 2015-05-14 A. Rebassa-Mansergas , B. T. Gaensicke , M. R. Schreiber , D. Koester , P. Rodriguez-Gil

We present the result of the cross-matching between UV-excess sources selected from the UV-excess survey of the Northern Galactic Plane (UVEX) and several infrared surveys (2MASS, UKIDSS and WISE). From the position in the (J-H) vs. (H-K)…

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

Accurate astrometric and photometric measurements from Gaia have led to the construction of 3D dust extinction maps which can now be used for estimating the integrated extinctions of Galactic sources located within 5 kpc. These maps based…

Solar and Stellar Astrophysics · Physics 2024-10-15 Snehalata Sahu , Pier-Emmanuel Tremblay , Rosine Lallement , Seth Redfield , Boris T. Gaensicke

Dwarf galaxies represent a powerful probe of annihilating dark matter particle models, with gamma-ray data setting some of the best bounds available. A major issue in improving over existing constraints consists in the limited knowledge of…

High Energy Astrophysical Phenomena · Physics 2018-11-14 Francesca Calore , Pasquale D. Serpico , Bryan Zaldivar

The third Gaia data release is published in two stages. The early part, Gaia EDR3, gives very precise astrometric and photometric properties for nearly two billion sources together with seven million radial velocities from Gaia DR2. The…