Results 121 to 130 of about 4,387 (203)

The Arizona-Montréal Spectroscopic Survey of hot subluminous stars★

Astronomy & Astrophysics
Context. Hot subdwarf B (sdB) and O (sdO) type stars are evolved helium-burning objects that lost their hydrogen envelope before the helium flash when their progenitors were close to the tip of the red giant branch (RGB).
Latour M., Green E. M., Dorsch M., Van Grootel V., Chayer P., Charpinet S., Heber U., Randall S. K., Ma X.-Y.   +8 more
doaj   +1 more source

X-ray emission from hot subdwarfs with compact companions

EPJ Web of Conferences, 2013
We review the X-ray observations of hot subdwarf stars. While no X-ray emission has been detected yet from binaries containing B-type subdwarfs, interesting results have been obtained in the case of the two luminous O-type subdwarfs HD 49798 and BD + 37° 
Esposito P., La Palombara N., Mereghetti S., Tiengo A.   +3 more
doaj   +1 more source

Ultracool Subdwarfs: Metal-poor Stars and Brown Dwarfs Extending into the Late-type M, L and T Dwarf Regimes [PDF]

, 2004
Adam J. Burgasser, J. Davy Kirkpatrick, Sébastien Lépine   +2 more
openalex   +1 more source

Discovery of diffuse optical emission lines from the inner Galaxy: Evidence for LI(N)ER-like gas. [PDF]

Sci Adv, 2020
Krishnarao D, Benjamin RA, Haffner LM.
europepmc   +1 more source

New observations and asteroseismic analysis of the subdwarf B pulsator PG 1219+534

Open Astronomy, 2018
We present a new asteroseismic modeling of the hot B subdwarf (sdB) pulsator PG 1219+534, based on a 3- month campaign with the Mont4K/Kuiper combination at Mt Bigelow (Arizona) and on updated atmospheric parameters from high S/N low and medium ...
Van Grootel Valérie, Péters Marie-Julie, Green Elizabeth M., Charpinet Stéphane, Brassard Pierre, Fontaine Gilles   +5 more
doaj   +1 more source

Detection of Long‐Period Variations in the Subdwarf B Star PG 0101+039 on the Basis of Photometry from theMOSTSatellite [PDF]

, 2005
S. K. Randall, J. M. Matthews, G. Fontaine, Jason F. Rowe, R. Kuschnig, E. M. Green, P. Brassard, P. Chayer, D. B. Guenther, A. F. J. Moffat, S. M. Ruciński, Dimitar Sasselov, G. A. H. Walker, W. W. Weiß   +13 more
openalex   +1 more source

Time resolved spectroscopy of the multiperiodic pulsating subdwarf B star PG 1605+072 [PDF]

, 2007
A. Tillich
openalex   +1 more source

A multisite campaign on the pulsating subdwarf B star PG 1047+003 [PDF]

, 2002
D. Kilkenny, M. Billères, R. S. Stobie, G. Fontaine, R. R. Shobbrook, D. O’Donoghue, P. Brassard, D. J. Sullivan, M. R. Burleigh, M. A. Barstow   +9 more
openalex   +1 more source

The OmegaWhite Survey for Short-period Variable Stars. V. Discovery of an Ultracompact Hot Subdwarf Binary with a Compact Companion in a 44-minute Orbit

, 2019
Thomas Kupfer, Gavin Ramsay, Jan van Roestel, Jared Brooks, S. Macfarlane, R. Toma, P. Groot, P. A. Woudt, Lars Bildsten, T. R. Marsh, Martin Green, E. Breedt, D. Kilkenny, J. Freudenthal, S. Geier, U. Heber, S. Bagnulo, N. Blagorodnova, D. A. H. Buckley, V. S. Dhillon, S. R. Kulkarni, R. Lunnan, Thomas A. Prince   +22 more
openalex   +1 more source

Hot subdwarf stars in close-up view - II. Rotational properties of single and wide binary subdwarf B stars [PDF]

, 2012
S. Geier, U. Heber
openalex   +1 more source