Binary Star Orbits. V. The Nearby White Dwarf/Red Dwarf Pair 40 Eri BC

A new relative orbit solution with new dynamical masses is determined for the nearby white dwarf-red dwarf pair 40 Eri BC. The period is 230.29 0.68 years. It is predicted to close slowly over the next half-century, getting as close as 1 32 in early 2066. We determine masses of 0.573 0.018 for the w...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	The Astronomical journal 2017-11, Vol.154 (5), p.200
Hauptverfasser:	Mason, Brian D., Hartkopf, William I., Miles, Korie N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy ASTROPHYSICS, COSMOLOGY AND ASTRONOMY binaries: general binaries: visual BINARY STARS Companion stars MASS Orbit calculation ORBITS RED DWARF STARS RED SHIFT Space telescopes stars: individual (40 Eri BC) techniques: interferometric WHITE DWARF STARS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A new relative orbit solution with new dynamical masses is determined for the nearby white dwarf-red dwarf pair 40 Eri BC. The period is 230.29 0.68 years. It is predicted to close slowly over the next half-century, getting as close as 1 32 in early 2066. We determine masses of 0.573 0.018 for the white dwarf and 0.2036 0.0064 for the red dwarf companion. The inconsistency of the masses determined by gravitational redshift and dynamical techniques, due to a premature orbit calculation, no longer exists.
ISSN:	0004-6256 1538-3881 1538-3881
DOI:	10.3847/1538-3881/aa803e