• No results found

Cataclysmic variables in the eclipse timing programme

The evolutionary status of Cataclysmic Variables: Eclipse modelling of 15 systems

The evolutionary status of Cataclysmic Variables: Eclipse modelling of 15 systems

... Accepted XXX. Received YYY; in original form ZZZ ABSTRACT We present measurements of the component masses in 15 Cataclysmic Variables (CVs) - 6 new estimates and 9 improved estimates. We provide new ...

29

The evolutionary status of Cataclysmic Variables: Eclipse modelling of 15 systems

The evolutionary status of Cataclysmic Variables: Eclipse modelling of 15 systems

... 7 National Astronomical Research Institute of Thailand, 191 Siriphanich Bldg., Huay Kaew Road, Chiang Mai 50200, Thailand Accepted 2019 April 1. in original form 2018 December 14 A B S T R A C T We present measurements ...

19

J-band spectroscopy of cataclysmic variables

J-band spectroscopy of cataclysmic variables

... Fig. 4 shows a standard Doppler map of the Paschen-b line in WZ Sge, along with a skew map of WZ Sge, made with Gl866AB. The Doppler map shows faint accretion disc structure, and is dominated by emission from the bright ...

12

X-rays from Cataclysmic Variables

X-rays from Cataclysmic Variables

... The emission measure, EM ∗ , is not a strong function of ˙ M (van Teeseling et al. 1996). It decreases, however, for CVs with higher i. For CVs with i<70 ◦ this cannot be due to obscuration of the X-ray source by ...

41

Observational studies of highly evolved cataclysmic variables

Observational studies of highly evolved cataclysmic variables

... 2.1 O BSERVATIONAL P ROPERTIES OF CV S Since telescopes are not able to separate spatially the light originating from the accretion disc from that coming from the WD or donor, a major part of studying CVs involves the ...

167

On the evolutionary status of short-period cataclysmic variables

On the evolutionary status of short-period cataclysmic variables

... If we can increase our sample of donor star masses using observations from the literature it will enable more robust comparisons with, for example, theoretical evolu- tionary tracks. To this end, we searched the ...

17

Photometric Mass Determinations of Eclipsing Cataclysmic Variables

Photometric Mass Determinations of Eclipsing Cataclysmic Variables

... successive eclipse cycles 1430 and ...individual eclipse fits, but it does question the reliability of the model disc flux ...individual eclipse light curves, which confirms the need for a systematic ...

300

First XMM-Newton observations of strongly magnetic cataclysmic variables - II. Timing studies of DP Leo and WW Hor

First XMM-Newton observations of strongly magnetic cataclysmic variables - II. Timing studies of DP Leo and WW Hor

... novae, cataclysmic variables – X-rays: ...magnetic cataclysmic variables also referred to as polars because of their strongly polarized optical ...

11

Detached cataclysmic variables are crossing the orbital period gap

Detached cataclysmic variables are crossing the orbital period gap

... respectively, for the systems with M4−M6 companions. This is consistent with having some dCVs with massive WDs in the period gap and seems to provide further support for the eCAML model. However, the tendency of having ...

12

Discovery of Fourier-dependent time lags in cataclysmic variables

Discovery of Fourier-dependent time lags in cataclysmic variables

... wavelengths, timing studies of these objects had to rely on op- tical observing campaigns from Earth, which are inevitably hin- dered by large interruptions, poor cadence, and in many cases poor signal-to-noise ...

7

The masses of the cataclysmic variables AC Cancri and V363 Aurigae

The masses of the cataclysmic variables AC Cancri and V363 Aurigae

... primary eclipse depth is ...of eclipse at the out-of-eclipse level (φ) by timing the first and last contacts of the B- and R-band photometry eclipses and di- viding by ...secondary ...

17

Hunting For Eclipses: High Speed Observations of Cataclysmic Variables

Hunting For Eclipses: High Speed Observations of Cataclysmic Variables

... Table 1. Journal of Observations. Some object names have been shortened. Start(MJD) is the start time of each observing run, given in MJD(UTC). Mid-eclipse times are given in BMJD(TDB) and the number in ...

34

The masses of the cataclysmic variables AC Cancri and V363 Aurigae

The masses of the cataclysmic variables AC Cancri and V363 Aurigae

... eclipsing cataclysmic variables AC Cnc and V363 Aur (= Lanning ...the eclipse of an optically thick region at the centre of the ...shallow eclipse compared to the ...

19

Detached cataclysmic variables are crossing the orbital period gap

Detached cataclysmic variables are crossing the orbital period gap

... Eclipse light curves led to the discovery of the close binary nature in 17 systems in our sample. As shown by Parsons et al. (2013a), the baseline and cadence of the archival Catalina data is typically good enough ...

12

New Observations of Accretion Phenomena in Magnetic Cataclysmic Variables

New Observations of Accretion Phenomena in Magnetic Cataclysmic Variables

... 2.1 Eclipse Observations of Polar Accretion Hot Spots In eclipsing Polars, the size, structure and location of the accretion regions on the white dwarf can be determined from sufficiently high time resolution ...

6

SuperWASP observations of long timescale photometric variations in cataclysmic variables

SuperWASP observations of long timescale photometric variations in cataclysmic variables

... the eclipse with orbital cycle number or observation time was ...the eclipse and the flux at a suitable reference position on the out of eclipse ...of eclipse regions were found to be highly ...

11

ULTRACAM photometry of the eclipsing cataclysmic variables XZ Eri and DV UMa

ULTRACAM photometry of the eclipsing cataclysmic variables XZ Eri and DV UMa

... the eclipse Another way of determining the system parameters is to use a phys- ical model of the binary system to calculate eclipse light curves for each of the various ...the eclipse is caused by ...

11

1000 cataclysmic variables from the Catalina Real time Transient Survey

1000 cataclysmic variables from the Catalina Real time Transient Survey

... Since CRTS can detect CVs that are several magnitudes fainter than the spectroscopic limit of SDSS, it is of particular interest to compare the CRTS CVs to those discovered by SDSS. As was already pointed out by ...

35

Infrared spectroscopy of cataclysmic variables - III. Dwarf novae below the period gap and nova-like variables

Infrared spectroscopy of cataclysmic variables - III. Dwarf novae below the period gap and nova-like variables

... telescope time for this survey. We also thank Tariq Shahbaz for his comments on this paper. UKIRT is operated by the Joint Astron- omy Centre on behalf of the Particle Physics and Astronomy Research Council. The spectra ...

13

Infrared spectroscopy of cataclysmic variables - III Dwarf novae below the period gap and nova-like variables

Infrared spectroscopy of cataclysmic variables - III Dwarf novae below the period gap and nova-like variables

... telescope time for this survey. We also thank Tariq Shahbaz for his comments on this paper. UKIRT is operated by the Joint Astron- omy Centre on behalf of the Particle Physics and Astronomy Research Council. The spectra ...

13

Show all 10000 documents...

Related subjects