Results 51 to 60 of about 4,667,827 (292)

The orbital and superhump periods of the dwarf nova HS 0417+7445 in Camelopardalis [PDF]

, 2011
We present the 2005-2010 outburst history of the SU UMa-type dwarf HS 0417+7445, along with a detailed analysis of extensive time-series photometry obtained in March 2008 during the second ecorded superoutburst of the system.
P. Dubovský, Dubovský, P., Staels, B., Brady, S. (Steve), S. Brady, Gänsicke, B. T. (Boris T.), I. Miller, B. Staels, Shears, J. H. (Jeremy H.), B.T. Gänsicke, J.H. Shears, Miller, I.   +11 more
core   +1 more source

The 1999 Optical Outburst of the Fast X-Ray Nova, V4641 Sagittarii [PDF]

Publications of the Astronomical Society of Japan, 2002
We report on the detection of an optical outburst which preceded the X-ray main flare of the fast X-ray nova V4641 Sagittarii. The object became active since early August 1999, and then experienced an optical outburst reaching 8.8 mag on 1999 September 15. The observed maximum was between two X-ray flares, that is, 12.1 hr after the X-ray sub-flare and
Makoto Uemura, Taichi Kato, Tsutomu Watanabe, Rod Stubbings, Berto Monard, Kawai Nobuyuki   +5 more
openaire   +1 more source

Gamma-ray emission from internal shocks in novae [PDF]

, 2017
Gamma-ray emission at energies >100MeV has been detected from nine novae using the Fermi-LAT, and it can be explained by particle acceleration at shocks in these systems.
P. Martin, G. Dubus, P. Jean, V. Tatischeff, Cyril Dosne   +4 more
semanticscholar   +1 more source

Comprehensive Listing of 208 Nova White Dwarf Masses as the Primary Determinant of Spectral Class and Light-curve Class

The Astrophysical Journal
For Galactic novae, I calculate and collect a comprehensive catalog of 208 measures of white dwarf (WD) masses ( M _WD ) and 232 measures of average V magnitudes in quiescence ( V _q ). These are collected into a comprehensive catalog of most fundamental
Bradley E. Schaefer
doaj   +1 more source

A Hubble Space Telescope Survey for Novae in M87. II. Snuffing out the Maximum Magnitude–Rate of Decline Relation for Novae as a Non-standard Candle, and a Prediction of the Existence of Ultrafast Novae [PDF]

, 2017
The extensive grid of numerical simulations of nova eruptions from the work of Yaron et al. first predicted that some classical novae might significantly deviate from the Maximum Magnitude–Rate of Decline (MMRD) relation, which purports to characterize ...
M. Shara, T. Doyle, T. Lauer, D. Zurek, E. Baltz, A. Kovetz, J. Madrid, J. Mikołajewska, J. D. Neill, D. Prialnik, D. Welch, O. Yaron   +11 more
semanticscholar   +1 more source

The Calibration of Novae as Distance Indicators [PDF]

, 1995
The problem of the correct calibration of the maximum magnitude versus rate of decline relationship for Galactic novae is discussed, on the basis of the properties of the nova populations of M31 and the Large Magellanic Cloud (LMC). We have compared the "
DELLA VALLE, Massimo, Livio, Mario
core   +1 more source

The Lupus Damage Index Revision Program: Results From the Item Generation and Reduction Phases

Arthritis Care &Research, EarlyView.
Objective A data‐driven and expert/patient consensus‐based project to develop a revised Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology (ACR) Damage Index (SDI) is under way supported by SLICC, ACR, and the Lupus Foundation of America. Our objective is to report the item generation and reduction phase results
Burak Kundakci, Megan R. W. Barber, Ann E. Clarke, Sindhu R. Johnson, Anselm Mak, Hermine I. Brunner, Murat Inanc, Rosalind Ramsey‐Goldman, Guillermo Ruiz‐Irastorza, Ellen M. Ginzler, John G. Hanly, Alexandra Legge, Cynthia Aranow, Laurent Arnaud, Nathalie Costedoat‐Chalumeau, Dafna D. Gladman, Søren Jacobsen, Michelle Petri, Clovis A. Silva, Évelyne Vinet, Alexandre E. Voskuyl, SDI Revision Literature Review Groups, SDI Revision Delphi Panel, SDI Revision Item Reduction Committee, SDI Revision Clinical Domain Groups, Ian N. Bruce   +25 more
wiley   +1 more source

Exploring the Maximum Magnitude versus Rate of Decline Relation for Novae in M31

The Astrophysical Journal Supplement Series
The results of a two-decade-long R -band photometric survey of novae in M31 are presented. From these data, R -band light curves have been determined for 180 novae with data sufficient for estimating the peak brightness and subsequent rate of decline ...
J. Grace Clark, Kamil Hornoch, Allen W. Shafter, Hana Kučáková, Jan Vraštil, Peter Kušnirák, Marek Wolf   +6 more
doaj   +1 more source

Optical observations of the fast nova V1674 Herculis

Monthly Notices of the Royal Astronomical Society
ABSTRACT We present the evolution of optical spectra and light curves of the fast nova V1674 Herculis during 150 d past its eruption. Using the post-eruption AAVSO light curve, we have calculated the orbital period of V1674 Her to be 0.153 d. There is no unambiguous white dwarf spin period in our data.
Neeraj Singh Rawat, L S Sonith, U S Kamath, Yash Bhargava, G C Anupama, Kulinder Pal Singh   +5 more
openaire   +2 more sources

The First Orbital Period of a Very Bright and Fast Nova in M31: M31N 2013-01b [PDF]

The Astrophysical Journal, 2018
Abstract We present the first X-ray and UV/optical observations of a very bright and fast nova in the disk of M31, M31N 2013-01b. The nova reached a peak magnitude R ∼ 15 mag and decayed by 2 mag in only 3 days, making it one of the brightest and fastest novae ever detected in Andromeda.
Martino Marelli, Domitilla De Martino, Sandro Mereghetti, Andrea De Luca, Ruben Salvaterra, Lara Sidoli, Gianluca Israel, Guillermo Rodriguez   +7 more
openaire   +3 more sources