Results 111 to 120 of about 5,486 (209)

From synthetic SEDs to stellar origins: A deep learning model for physical parameter retrieval in hot subdwarf stars

Astronomy & Astrophysics
Aims. The formation mechanisms of spectrally diverse hot subdwarfs remain unclear. While existing mass distribution analyses suggest additional channels beyond helium white dwarf (He-WD) mergers contribute to He-rich subdwarf formation, these conclusions
Feng Mengqi, Lei Zhenxin, Kou Bokai, Dong Yangyang, Hu Ke, Xiao Huaping, Zhao Jingkun   +6 more
doaj   +1 more source

News on the X-ray emission from hot subdwarf stars

Open Astronomy, 2017
In latest years, the high sensitivity of the instruments on-board the XMM-Newton and Chandra satellites allowed us to explore the properties of the X-ray emission from hot subdwarf stars.
Palombara Nicola La, Mereghetti Sandro
doaj   +1 more source

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

, 2007
A. Tillich
openalex   +1 more source

Envelope loss of RGB/AGB stars and the formation of hot subdwarfs

EPJ Web of Conferences, 2013
Low mass stars may lose their envelopes in the first giant branch (RGB) or the asymptotic giant branch (AGB) via envelope ejection (i.e. superwind). The envelope loss of AGB stars leads to the formation of carbon-oxygen (CO) white dwarfs (WDs), while the
Chen X., Han Z.
doaj   +1 more source

On the formation of single and binary helium-rich subdwarf O stars [PDF]

, 2010
Stephen Justham, Philipp Podsiadlowski, Zhanwen Han   +2 more
openalex   +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

On the Capability of Oxidovanadium(IV) Derivatives to Act as All-Around Catalytic Promoters Since the Prebiotic World. [PDF]

Molecules, 2020
Campitelli P, Crucianelli M.
europepmc   +1 more source

Discovery of [CLC][ITAL]p[/ITAL][/CLC]-Mode Instabilities in the Hot Subdwarf B Star PG 1047+003 [PDF]

, 1997
M. Billères, G. Fontaine, P. Brassard, S. Charpinet, James Liebert, R. A. Saffer, G. Vauclair   +6 more
openalex   +1 more source

The first massive compact companion in a wide orbit around a hot subdwarf star [PDF]

, 2023
S. Geier, M. Dorsch, Harry Dawson, Ingrid Pelisoli, James Munday, T. R. Marsh, V. Schaffenroth, U. Heber   +7 more
openalex   +1 more source

Deep Learning–driven Atmospheric Parameter Prediction for Hot Subdwarf Stars with Synthetic and Observed Spectra

The Astrophysical Journal Supplement Series
We design a convolutional neural network incorporating channel attention and spatial attention mechanisms to predict atmospheric parameters of hot subdwarfs.
Zhenxin Lei, Yangyang Dong, Bokai Kou, Mengqi Feng, Ke Hu, Yude Bu, Jingkun Zhao   +6 more
doaj   +1 more source