Results 111 to 120 of about 7,790 (232)
, 2005 We report the discovery of 152 new high proper motion systems (mu >= 0.4"/yr) in the southern sky (Declination = -47 degrees to 00 degrees) brighter than UKST plate R_{59F} =16.5 via our SuperCOSMOS-RECONS (SCR) search.
Charlie T. Finch +13 more
core +1 more source
Three new X-ray emitting sdO stars discovered with Chandra [PDF]
, 2014 X-ray observations of sdO stars are a useful tool to investigate their properties, but so far only two sdO stars were detected at X-rays. We observed a complete flux-limited sample of 19 sdO stars with the Chandra HRC-I camera to measure the count rate ...
Esposito, P. +3 more
core +2 more sources
Abundance analysis of a nitrogen-rich extreme-helium hot subdwarf from the SALT survey [PDF]
, 2023 L. J. A. Scott. +4 more
openalex +3 more sources
ON THE OBSERVED PHYSICAL PROPERTIES AND EVOLUTIONARY TRENDS OF HOT SUBDWARFS IN BINARY SYSTEMS
Odessa Astronomical Publications, 2017 In our brief review we summarize the latest advances in studies of white dwarfs both as single objects and the components of binary systems. We discuss the observed properties of the hot subdwarfs (sdws), the various techniques of their discovery and ...
I. Pustylnik
doaj +1 more source
Faint M-dwarfs and the structure of the Galactic disk [PDF]
, 1997 We use broadband photometry and low-resolution spectra of a complete sample of late-K and M dwarfs brighter than I=22 in three fields at high galactic latitude to study issues relating to galactic structure and large scale abundance gradients in the ...
Cohen, J. G. +7 more
core +5 more sources
Pulsating hot O subdwarfs in ω Centauri: mapping a unique instability strip on the extreme horizontal branch [PDF]
, 2016 We present the results of an extensive survey for rapid pulsators among Extreme Horizontal Branch (EHB) stars in ω Cen. The observations performed consist of nearly 100 h of time-series photometry for several off-centre fields of the cluster, as well as ...
S. Randall +12 more
semanticscholar +1 more source
Hot subluminous stars: Highlights from the MUCHFUSS and Kepler missions
EPJ Web of Conferences, 2013 Research into hot subdwarf stars is progressing rapidly. We present recent important discoveries. First we review the knowledge about magnetic fields in hot subdwarfs and highlight the first detection of a highly-magnetic, helium-rich sdO star.
Geier S., Heber U., Gaensicke B.
doaj +1 more source
2MASS J06164006-6407194: The First Outer Halo L Subdwarf
, 2009 We present the serendipitous discovery of an L subdwarf, 2MASS J06164006-6407194, in a search of the Two Micron All Sky Survey for T dwarfs. Its spectrum exhibits features indicative of both a cool and metal poor atmosphere including a heavily pressured ...
Burgasser, A. J. +7 more
core +1 more source
A subdwarf’s startling stellar wind [PDF]
Monthly Notices of the Royal Astronomical Society, 1987 Observations selectionnees de la sous naine HD 128220B pour illustrer plusieurs proprietes remarquables de son vent ...
openaire +1 more source
Blue large-amplitude pulsators as a new class of variable stars
, 2017 Regular intrinsic brightness variations observed in many stars are caused by pulsations. These pulsations provide information on the global and structural parameters of the star.
Angeloni, R. +15 more
core +2 more sources