DOAJ Open Access 2026

Spectroscopic Characterization of WD J000801.25-350450 and Its Two Comoving Companions

Peter A. Jałowiczor Thomas P. Bickle J. Davy Kirkpatrick Sarah L. Casewell Nicola Gentile Fusillo +14 lainnya

Abstrak

We present new spectroscopic data for Gaia DR3 2309499817384726016 (WD 0008-350A) and its two wide, comoving, low-mass companions. We confirm the white dwarf is a hydrogen rich DA, with T _eff = 6200 ± 90 K and a mass of 0.63 ± 0.03 M _⊙ , close to that of the average white dwarf. Near-infrared spectra of the two stellar companions to WD 0008-350A reveal that the inner companion is an M dwarf, exhibiting a spectral type of M8. Furthermore, the outer companion is identified as a possible M6 + M9 binary. This paper examines the evidence which suggests the system may be quadruple.

Topik & Kata Kunci

Astronomy

Penulis (19)

Peter A. Jałowiczor

Thomas P. Bickle

J. Davy Kirkpatrick

Sarah L. Casewell

Nicola Gentile Fusillo

Adam C. Schneider

Jonathan Gagné

Jacqueline K. Faherty

Aaron M. Meisner

Marc J. Kuchner

Adam J. Burgasser

Austin Rothermich

Alexia Bravo

Michiharu Hyogo

Mark Popinchalk

Alex J. Brown

Alberto Rebassa-Mansergas

Raquel Murillo-Ojeda

The Backyard Worlds: Planet 9 Collaboration

Format Sitasi

APA MLA BibTeX

Jałowiczor, P.A., Bickle, T.P., Kirkpatrick, J.D., Casewell, S.L., Fusillo, N.G., Schneider, A.C. et al. (2026). Spectroscopic Characterization of WD J000801.25-350450 and Its Two Comoving Companions. https://doi.org/10.3847/1538-3881/ae38d3

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Informasi Jurnal

Tahun Terbit: 2026
Sumber Database: DOAJ
DOI: 10.3847/1538-3881/ae38d3
Akses: Open Access ✓