Zobrazeno 1 - 10
of 85
pro vyhledávání: '"MUKADAM, ANJUM S."'
Autor:
Szkody, Paula, Mukadam, Anjum S., Toloza, Odette, Gänsicke, Boris T., Dai, Zhibin, Pala, Anna F., Waagen, Elizabeth O., Godon, Patrick, Sion, Edward M.
Time-tag ultraviolet data obtained on the Hubble Space Telescope in 2013 reveal interesting variability related to the white dwarf spin in the two cataclysmic variables RZ Leo and CC Scl. RZ Leo shows a period at 220s and its harmonic at 110s, thus i
Externí odkaz:
http://arxiv.org/abs/1702.04076
Autor:
Szkody, Paula, Mukadam, Anjum S., Gaensicke, Boris T., Chote, Paul, Nelson, Peter, Myers, Gordon, Toloza, Odette, Waagen, Elizabeth O., Sion, Edward M., Sullivan, Denis J., Townsley, Dean M.
We report continued Hubble Space Telescope (HST) ultraviolet spectra and ground-based optical photometry and spectroscopy of GW Librae eight years after its largest known dwarf nova outburst in 2007. This represents the longest cooling timescale meas
Externí odkaz:
http://arxiv.org/abs/1606.00945
Autor:
Szkody, Paula, Mukadam, Anjum S., Gaensicke, Boris T., Henden, Arne, Sion, Edward M., Townsley, Dean M., Christian, Damian, Falcon, Ross E., Pyrzas, Stylianos, Brown, Justin, Funkhouser, Kelsey
Hubble Space Telescope spectra obtained in 2010 and 2011, three and four years after the large amplitude dwarf nova outburst of V455 And, were combined with optical photometry and spectra to study the cooling of the white dwarf, its spin, and possibl
Externí odkaz:
http://arxiv.org/abs/1309.1217
Autor:
Szkody, Paula, Mukadam, Anjum S., Sion, Edward M., Gansicke, Boris T., Henden, Arne, Townsley, Dean
We present an ultraviolet spectrum and light curve of the short orbital period cataclysmic variable EZ Lyn obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope 14 months after its dwarf nova outburst, along with ground-based op
Externí odkaz:
http://arxiv.org/abs/1303.1876
Autor:
Córsico, Alejandro H., Althaus, Leandro G., Romero, Alejandra D., Mukadam, Anjum S., García--Berro, Enrique, Isern, Jordi, Kepler, S. O., Corti, Mariela A.
Pulsating white dwarfs with hydrogen-rich atmospheres, also known as DAV stars, can be used as astrophysical laboratories to constrain the properties of fundamental particles like axions. Comparing the measured cooling rates of these stars with the e
Externí odkaz:
http://arxiv.org/abs/1211.3389
Autor:
Hermes, J. J., Kilic, Mukremin, Brown, Warren R., Winget, D. E., Prieto, Carlos Allende, Gianninas, A., Mukadam, Anjum S., Cabrera-Lavers, Antonio, Kenyon, Scott J.
We report the detection of orbital decay in the 12.75-min, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric observations over a 13-month baseline constrain the orbital period to 765.206543(55) s and indic
Externí odkaz:
http://arxiv.org/abs/1208.5051
Autor:
Szkody, Paula, Mukadam, Anjum S., Gaensicke, Boris T., Henden, Arne, Sion, Edward M., Townsley, Dean, Chote, Paul, Harmer, Diane, Harpe, Eric J., Hermes, J. J., Sullivan, Denis J., Winget, D. E.
Since the large amplitude 2007 outburst which heated its accreting, pulsating white dwarf, the dwarf nova system GW Librae has been cooling to its quiescent temperature. Our Hubble Space Telescope ultraviolet spectra combined with ground-based optica
Externí odkaz:
http://arxiv.org/abs/1205.2598
Autor:
Bullock, Eric, Szkody, Paula, Mukadam, Anjum S., Borges, Bernardo W., Fraga, Luciano, Gänsicke, Boris T., Harrison, Thomas E., Henden, Arne, Holtzman, Jon, Howell, Steve B., Lawson, Warrick A., Levine, Stephen, Plotkin, Richard M., Seibert, Mark, Templeton, Matthew, Teske, Johanna, Vrba, Frederick J.
The prototype of accreting, pulsating white dwarfs (GW Lib) underwent a large amplitude dwarf nova outburst in 2007. We used ultraviolet data from GALEX and ground-based optical photometry and spectroscopy to follow GW Lib for three years following t
Externí odkaz:
http://arxiv.org/abs/1101.1238
Autor:
Montgomery, M. H., Provencal, J. L., Kanaan, A., Mukadam, Anjum S., Thompson, S. E., Dalessio, J., Shipman, H. L., Winget, D. E., Kepler, S. O., Koester, D.
Convective driving, the mechanism originally proposed by Brickhill (1991, 1983) for pulsating white dwarf stars, has gained general acceptance as the generic linear instability mechanism in DAV and DBV white dwarfs. This physical mechanism naturally
Externí odkaz:
http://arxiv.org/abs/1004.3579
Autor:
Mukadam, Anjum S., Townsley, D. M., Gaensicke, B. T., Szkody, P., Marsh, T. R., Robinson, E. L., Bildsten, L., Aungwerojwit, A., Schreiber, M. R., Southworth, J., Schwope, A., For, B. -Q., Tovmassian, G., Zharikov, S. V., Hidas, M. G., Baliber, N., Brown, T., Woudt, P. A., Warner, B., O'Donoghue, D., Buckley, D. A. H., Sefako, R., Sion, E. M.
Nonradial pulsations in the primary white dwarfs of cataclysmic variables can now potentially allow us to explore the stellar interior of these accretors using stellar seismology. In this context, we conducted a multi-site campaign on the accreting p
Externí odkaz:
http://arxiv.org/abs/1003.5703