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Related papers: Novalike Cataclysmic Variables in the Infrared

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We review infrared (1-2.5 microns) observations of cataclysmic variables, a relatively unexplored part of the spectrum in which the dominant sources of emission are the secondary star, the outer regions of the accretion disc and the…

Astrophysics · Physics 2007-05-23 V. S. Dhillon

Because accretion-generated luminosity dominates the radiated energy of most cataclysmic variables, they have been ``traditionally'' observed primarily at short wavelengths. Infrared observations of cataclysmic variables contribute to the…

Astrophysics · Physics 2009-11-07 D. W. Hoard , S. Wachter , L. Lee Clark , Timothy P. Bowers

Accretion discs are fundamental to much of astronomy. They can occur around stars both young and old, around compact objects they provide a window into the extremes of physics, and around supermassive black holes in galaxy centres they…

Solar and Stellar Astrophysics · Physics 2024-06-07 Gabriella Zsidi , C. J. Nixon , T. Naylor , J. E. Pringle

Outflows in the form of fast winds from the accretion disk appear in nearly all high accretion rate cataclysmic variables (CVs), both novalikes (NLs) and dwarf novae in outburst (DN). The primary signatures of CV winds are broad,…

Astrophysics · Physics 2007-05-23 C. S. Froning

We describe extensive synoptic multi-wavelength observations of the transition disk LRLL 31 in the young cluster IC 348. We combined four epochs of IRS spectra, nine epochs of MIPS photometry, seven epochs of cold-mission IRAC photometry…

Astrophysics of Galaxies · Physics 2015-05-27 Kevin Flaherty , James Muzerolle , George Rieke , Robert Gutermuth , Zoltan Balog , William Herbst , S. T. Megeath , Maria Kun

We present the results of a multi-wavelength multi-epoch survey of five evolved protoplanetary disks in the IC 348 cluster that show significant infrared variability. Using 3-8micron and 24micron photometry along with 5-40micron…

Astrophysics of Galaxies · Physics 2015-06-04 Kevin Flaherty , James Muzerolle , George Rieke , Robert Gutermuth , Zoltan Balog , William Herbst , S. T. Megeath , Maria Kun

The disk instability model attributes the outbursts of dwarf novae to a thermal-viscous instability of their accretion disk, an instability to which nova-like stars are not subject. We aim to test the fundamental prediction of the disk…

High Energy Astrophysical Phenomena · Physics 2018-09-19 Guillaume Dubus , Magdalena Otulakowska-Hypka , Jean-Pierre Lasota

We present the first observations of magnetic cataclysmic variables with the Spitzer Space Telescope. We used the Infrared Array Camera to obtain photometry of the polars EF Eri, GG Leo, V347 Pav, and RX J0154.0-5947 at 3.6, 4.5, 5.8, and…

The orbital evolution of cataclysmic variables in which the companion is illuminated by a fraction of the accretion luminosity consists of irradiation-driven limit cycles on thermal timescales, superimposed on a secular evolution toward…

Astrophysics · Physics 2009-10-30 P. McCormick , J. Frank

Aperiodic broad-band variability (also known as flickering) is observed throughout all types of accreting compact objects. Many statistical properties of this variability can be naturally explained with the fluctuating accretion disk model,…

Astrophysics of Galaxies · Physics 2015-06-18 Simone Scaringi

Time-resolved optical photometry, complemented by TESS data and long-term survey light curves, reveals that the transient object CRTS SSS100505 J093417-174421 is an eclipsing novalike cataclysmic variable of the VY~Scl subtype, with an…

Solar and Stellar Astrophysics · Physics 2026-03-17 R. Baptista , A. Bruch , R. Lopes de Oliveira , C. V. Rodrigues , A. S. Oliveira , I. J. Lima

We present far-ultraviolet (905 -- 1182 A), time-series spectroscopy of the eclipsing, novalike cataclysmic variable, UX UMa, acquired with FUSE. The time-averaged spectrum is complex and is dominated by overlapping spectral features. The…

Astrophysics · Physics 2009-11-07 C. S. Froning , K. S. Long , C. Knigge

Cataclysmic Variables (CVs) are compact binaries with white dwarf (WD) primaries. CVs and other accreting WD binaries (AWBs) are useful laboratories for studying accretion flows, gas dynamics, outflows, transient outbursts, and explosive…

High Energy Astrophysical Phenomena · Physics 2020-07-23 Solen Balman

Radio emission from non-magnetic cataclysmic variables (CVs, accreting white dwarfs) could allow detailed studies of outflows and possibly accretion flows in these nearby, numerous and non-relativistic compact accretors. Up to now, however,…

During its lifetime, the Far Ultraviolet Spectroscopic Explorer (FUSE) was used to observe 99 cataclysmic variables in 211 separate observations. Here, we present a survey of the moderate resolution (R\simeq10,000), far-ultraviolet (905 -…

Astrophysics of Galaxies · Physics 2015-06-03 C. S. Froning , K. S. Long , B. Gaensicke , P. Szkody

We present a search for excess mid-IR emission due to circumbinary material in the orbital plane of cataclysmic variables (CVs). Our motivation stems from the fact that the strong braking exerted by a circumbinary (CB) disc on the binary…

Astrophysics · Physics 2009-11-10 G. Dubus , R. Campbell , B. Kern , R. E. Taam , H. C. Spruit

Observations of Cataclysmic Variables show a number of phenomena that do not fit easily into the standard magnetic braking scenario. These include the large spread in mass transfer rates, the low surface temperatures of many of the…

Astrophysics · Physics 2007-05-23 H. C. Spruit , R. E. Taam

Cataclysmic Variables (CVs) are a distinct class of X-ray binaries transferring mass from a donor star to a compact star accretor, a white dwarf. They constitute a laboratory for accretion physics, mechanisms and disk theory together with…

High Energy Astrophysical Phenomena · Physics 2011-12-19 S. Balman

Cataclysmic variable stars are in many ways similar to X-ray binaries. Both types of systems possess an accretion disk, which in most cases can reach the surface (or event horizon) of the central compact object. The main difference is that…

High Energy Astrophysical Phenomena · Physics 2014-07-07 Simone Scaringi

We present the ultraviolet-optical-infrared spectral energy distribution of the low inclination novalike cataclysmic variable V592 Cassiopeiae, including new mid-infrared observations from 3.5-24 microns obtained with the Spitzer Space…

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