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of 63
pro vyhledávání: '"B. N. Barlow"'
About a third of the hot subdwarfs of spectral type B, which are mostly core-helium burning objects on the extreme horizontal branch, are found in close binaries with cool, low-mass stellar, substellar, or white dwarf companions. They can show light
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f4fb36e0c5d5f795cb596237ce6ab66
http://arxiv.org/abs/2207.02001
http://arxiv.org/abs/2207.02001
Publikováno v:
Astronomy & Astrophysics. 673:A90
Context. Hot subdwarfs in close binaries with either M dwarf, brown dwarf, or white dwarf companions show unique light variations. In hot subdwarf binaries with M dwarf or brown dwarf companions, we can observe the so-called reflection effect, while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97e3be4f90bedd49aa531b68fd390a67
https://doi.org/10.1051/0004-6361/202244697
https://doi.org/10.1051/0004-6361/202244697
Autor:
M. Brož, P. Harmanec, P. Zasche, R. Catalan-Hurtado, B. N. Barlow, W. Frondorf, M. Wolf, H. Drechsel, R. Chini, A. Nasseri, J. Labadie-Bartz, G. W. Christie, W. S. G. Walker, M. Blackford, D. Blane, A. A. Henden, T. Bohlsen, H. Božić, J. Jonák
HD 93206 is early-type massive stellar system, composed of components resolved by direct imaging (Ab, Ad, B, C, D) as well as a compact sub-system (Aa1, Aa2, Ac1, Ac2). Its geometry was already determined on the basis of extensive photometric, spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed677a6a1a60a7edd1fe852ec4a9468c
http://arxiv.org/abs/2206.12160
http://arxiv.org/abs/2206.12160
Autor:
P. Mayer, P. Harmanec, P. Zasche, M. Brož, R. Catalan-Hurtado, B. N. Barlow, W. Frondorf, M. Wolf, H. Drechsel, R. Chini, A. Nasseri, A. Pigulski, J. Labadie-Bartz, G. W. Christie, W. S. G. Walker, M. Blackford, D. Blane, A. A. Henden, T. Bohlsen, H. Božić, J. Jonák
The hot nine-component system HD 93206, which contains a gravitationally bounded eclipsing Ac1+Ac2 binary ($P=5.9987$~d) and a spectroscopic Aa1+Aa2 ($P=20.734$~d) binary can provide~important insights into the origin and evolution of massive stars.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d0173bf63e7a5c5271fae1bf01ed21f
Brightening of Hen 3-860, previously classified as an H$\alpha$ emitter, was detected by the ASAS-SN survey at the end of the year 2016. We have obtained the first spectroscopic observations of the transient and supplemented them with photometric dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d518fa7e0478c971e875e8f16431393f
Akademický článek
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Autor:
S. Geier, U. Heber, A. Tillich, H. Hirsch, S. Müller, T. Kupfer, V. Schaffenroth, L. Classen, P. F. L. Maxted, R. H. O̸stensen, B. N. Barlow, T. R. Marsh, B. T. Gänsicke, R. Napiwotzki, S. J. O’Toole, Klaus Werner, T. Rauch
Publikováno v:
AIP Conference Proceedings
The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions like massive white dwarfs (M>1.0 M⊙), neutron stars or stellar mass black holes. The exis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06f446e84351fe93429f2b46903a9681
https://doi.org/10.1063/1.3527819
https://doi.org/10.1063/1.3527819
Publikováno v:
AIP Conference Proceedings.
We present the O‐C diagram for CS 1246, a pulsating subdwarf B star dominated by a single, large‐amplitude pulsation mode. Using the PROMPT telescopes, we collected nearly 400 hours of photometry over 14 months to look for secular variations in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ba5d5f49eaaec7a9b3ce1a2b762243d
https://doi.org/10.1063/1.3527885
https://doi.org/10.1063/1.3527885
Autor:
S. Geier, U. Heber, A. Tillich, H. Hirsch, S. Müller, T. Kupfer, V. Schaffenroth, L. Classen, P. F. L. Maxted, R. H. O̸stensen, B. N. Barlow, T. R. Marsh, B. T. Gänsicke, R. Napiwotzki, S. J. O’Toole, Vicky Kologera, Marc van der Sluys
Publikováno v:
AIP Conference Proceedings.
The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions like supermassive white dwarfs (M>1.0M⊙), neutron stars or stellar mass black holes. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1133f33b4a3441b5ace3bd11362af87a
https://doi.org/10.1063/1.3536418
https://doi.org/10.1063/1.3536418
Publikováno v:
AIP Conference Proceedings.
We provide an overview of the hot DQ white dwarf variables with attention to their emerging group properties. We present recent results, including the discovery of a new, large‐amplitude variable from the 2QZ survey, and speculate that the DQ varia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0b879ec8ee2185399859ae3539bd0a6
https://doi.org/10.1063/1.3527892
https://doi.org/10.1063/1.3527892