Results 151 to 160 of about 808 (171)

The structure of subdwarf stars.

The Astronomical Journal, 1959
openaire   +2 more sources

A series of subdwarf atmospheres

The Astronomical Journal, 1960
openaire   +1 more source

Discovery of new TESS pulsating hot subdwarfs

Astronomy and Astrophysics, 2022
This work is dedicated to a search for new pulsating hot subdwarfs in TESS photometric data which could have been missed in previous searches. By matching catalogues of hot subdwarfs with TESS targets and using luminosities from Gaia parallaxes, a list ...
J Krzesinski, L A Balona
exaly   +3 more sources

A spectroscopic and proper motion search of Sloan Digital Sky Survey: red subdwarfs in binary systems [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
Red subdwarfs in binary systems are crucial for both model calibration and spectral classification. We search for red subdwarfs in binary systems from a sample of high proper motion objects with Sloan Digital Sky Survey spectroscopy.
Z H Zhang, M C Gálvez-Ortiz, S Catalan
exaly   +2 more sources

Primeval very low-mass stars and brown dwarfs – I. Six new L subdwarfs, classification and atmospheric properties [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
We have conducted a search for L subdwarf candidates within the photometric catalogues of the UKIRT Infrared Deep Sky Survey and Sloan Digital Sky Survey.
M C Gálvez-Ortiz, N Lodieu, Federico Marocco   +2 more
exaly   +2 more sources

Metallicity, temperature, and gravity scales of M subdwarfs,

Astronomy and Astrophysics, 2019
Aims. The aim of the project is to define metallicity/gravity/temperature scales for different spectral types of metal-poor M dwarfs. Methods. We obtained intermediate-resolution ultraviolet (R ∼ 3300), optical (R ∼ 5400), and near-infrared (R ∼ 3900 ...
N Lodieu, France Allard, C Rodrigo
exaly   +2 more sources

Discovery of extremely lead-rich subdwarfs: does heavy metal signal the formation of subdwarf B stars?

Monthly Notices of the Royal Astronomical Society, 2013
Hot subdwarfs represent a group of low-mass helium-burning stars formed through binarystar interactions and include some of the most chemically peculiar stars in the Galaxy.
C S Jeffery, Jeffery C S, Hibbert A
exaly   +2 more sources

Discovery of magnetic fields in hot subdwarfs

Astronomy and Astrophysics, 2005
We present polarisation measurements of sdB and sdO stars using FORS1 on the VLT. The observations were made as part of a project to determine whether magnetic fields in two super-metal-rich stars can explain their extreme abundance peculiarities ...
S J O´Toole, S Jordan, U Heber
exaly   +2 more sources

The SALT survey of helium-rich hot subdwarfs: final sample and classification [PDF]

Monthly Notices of the Royal Astronomical Society
A medium-resolution spectroscopic survey of helium-rich hot subdwarfs has been carried out using the Southern African Large Telescope. Objectives include the discovery of exotic hot subdwarfs, resolving distinct subclasses, identifying evolutionary ...
C S Jeffery, M Dorsch, A Philip Monai
exaly   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Velocities Of Subdwarfs

Publications of the Astronomical Society of the Pacific, 1940
D. M. Popper, C. K. Seyfert
openaire   +1 more source