Results 31 to 40 of about 2,261,610 (72)

SDSS J080449.49+161624.8 : a peculiar AM CVn star from a colour-selected sample of candidates [PDF]

, 2008
We describe a spectroscopic survey designed to uncover an estimated similar to 40 AM Canum Venaticorum (AM CVn) stars hiding in the photometric data base of the Sloan Digital Sky Survey.
Roelofs, Gijs H. A., Groot, E. de, de Groot, E., Woudt, P., Steeghs, D., Woudt, P. A., Liebert, J., Roelofs, G.H.A., Rau, Arne, Rau, A., Nelemans, G., Marsh, T.R., Liebert, James W., Nelemans, G.A., Groot, P. J., Marsh, T. R., Groot, P.J.   +16 more
core   +1 more source

Theoretical studies of the RS Canum Venaticorum stars [PDF]

, 1982
The activity in RS Canum Venaticorum (CVn) is investigated. Models for chromospheric structure are developed and the role of magnetic fields both in the photosphere as well as in the chromosphere and upper atmosphere are examined.
Mullan, D. J.
core  

Mass transfer and evolution of compact binary stars [PDF]

, 2007
We present a study of key aspects of the evolution of binary stars with emphasis on binaries consisting of two white dwarf stars. The evolution of such systems is driven by the loss of angular momentum by gravitational wave radiation.
Gokhale, Vayujeet, null null, Vayujeet Gokhale   +2 more
core   +1 more source

A catalogue of chromospherically active binary stars (third edition) [PDF]

, 2008
The catalogue of chromospherically active binaries (CABs) has been revised and updated. With 203 new identifications, the number of CAB stars is increased to 409.
Dogru, D., SOYDUGAN, ESİN, Soydugan, E., Soydugan, F., Tueysuez, M., Ak, Nurten, SOYDUGAN, FARUK, Ugras, B., Bilir, S., Erdem, A., Demircan, O., ERDEM, AHMET, Bakis, H., Ak, N. Filiz, Eker, Z., Bilir, Selçuk, Dogru, Derya, Uğraş, Burak, Eker, Zeki, Tüysüz, M., Bakış, Hicran, Filiz Ak, Nurten, Demircan, Osman   +22 more
core   +1 more source

The Hidden Population of AM CVn Binaries in the Sloan Digital Sky Survey [PDF]

, 2023
We present results from a spectroscopic survey designed to uncover AM Canum Venaticorum (AM CVn) binaries hidden in the photometric database of the Sloan Digital Sky Survey (SDSS).
Gansicke, B. T., Nelemans, G., Steeghs, D., Copperwheat, C. M., Groot, P. J., Carter, P. J., Breedt, E., Marsh, T. R.   +7 more
core   +1 more source

Time-series analysis of long-term photometry of BM Canum Venaticorum [PDF]

, 2017
Long-term photometry is commonly used to monitor chromospheric activity of late-type stars. We study standard Johnson differential V photometry of the RS CVn binary BM Canum Venaticorum (BM CVn) spanning over a quarter of a century.
Jetsu, L., T. Hackman, L. Jetsu, Nikbakhsh, S., Viitanen, A., T. Willamo, S. Monira, Henry, G. W., Viuho, J., G. W. Henry, Viuho, Joonas Kari Markku, Lehtinen, J., L. Siltala, P. Kajatkari, A. Viitanen, J. Lankinen, L. Immonen, Lankinen, J., Immonen, L., Hackman, T., S. Nikbakhsh, Siltala, L., J. Viuho, J. Lehtinen, Willamo, T., Monira, S., Kajatkari, P.   +26 more
core   +1 more source

Nova-like variables [PDF]

, 1993
On grounds of different observable characteristics five classes of nova-like objects are distinguished: the UX Ursae Majoris stars, the antidwarf novae, the DQ Herculis stars, the AM Herculis stars, and the AM Canum Venaticorum stars.
Ladous, Constanze
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Searching for Ultra-compact binary stars with the MeerLICHT Southern All-Sky Survey [PDF]

, 2023
An effort was made to expand the known population of AM Canum Venaticorum (AM CVn) stars, a rare type of ultra-compact binary star. This was done by searching through the MeerLICHT Southern All-Sky Survey (ML SASS) data with a candidate selection process
Lees, Robert
core   +1 more source

Detection of an extremely active state of AM Canum Venaticorum

, 1986
Fast photometric observations of AM Canum Venaticorum (AM CVn), the ultrashort-period, hydrogen-deficient variable, are reported. An intense flare of (Delta m) peak roughly 0.34 was detected on February 24th, 1985 in white light lasting over 200 s ...
Padmini, V. N., Kasturirangan, K., Seetha, S., Narayanan Kutty, K. R., Marar, T. M. K.   +4 more
core   +1 more source

Found : the progenitors of AM CVn and supernovae .Ia [PDF]

, 2013
We present optical and X-ray observations of two tidally distorted, extremely low-mass white dwarfs (WDs) with massive companions. There is no evidence of neutron stars in our Chandra and XMM observations of these objects. SDSS J075141.18−014120.9 (J0751)
Kilic, M., J. J. Hermes, Brown, W. R., Samuel T. Harrold, Harrold, S. T., Heinke, C. O., A. Gianninas, Denis J. Sullivan, Craig O. Heinke, Bell, K. J., Agüeros, Marcel Andre, Agueros, M. A., Sullivan, Denis J., Mukremin Kilic, Brown, Warren R., Bell, Keaton J., Warren R. Brown, Harrold, Samuel T., Heinke, Craig O., Paul Chote, Hermes, J. J., Chote, Paul, Kilic, Mukremin, Keaton J. Bell, M. A. Agüeros, Gianninas, A.   +25 more
core   +1 more source