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相关论文: On the light-curves of disk and bulge novae

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In order to examine the hypothesis of the existence of two different kinds of nova populations in the Galaxy - 'disk' novae and 'bulge' novae - the frequency distribution in the z-direction was obtained for 64 novae. The fact that large…

天体物理学 · 物理学 2007-12-19 Marina Burlak

I derive the overall best distances for all 402 known galactic novae, and I collect their many properties. The centrepiece is the 74 novae with accurate parallaxes from the new Gaia data release. For the needed priors, I have collected 171…

太阳与恒星天体物理 · 物理学 2022-10-26 Bradley E. Schaefer

We have collected the available data from the literature and from public data archives covering the past two decades for the long-term X-ray and optical light curves of X-ray nova (XN) outbursts, and carry out for the first time a…

天体物理学 · 物理学 2009-10-30 Wan Chen , C. R. Shrader , Mario Livio

We study how type Ia supernovae (SNe Ia) are spatially distributed within their host galaxies, using data taken from the Sloan Digital Sky Survey (SDSS). This paper specifically tests the hypothesis that the SNe Ia rate traces the r-band…

星系天体物理 · 物理学 2024-01-26 Christopher Pritchet , Karun Thanjavur , Connor Bottrell , Yan Gao

The recent GAIA DR2 measurements of distances to galactic novae have allowed to re-analyse some properties of nova populations in the Milky Way and in external galaxies on new and more solid empirical bases. In some cases we have been able…

太阳与恒星天体物理 · 物理学 2020-07-15 Massimo Della Valle , Luca Izzo

Despite its fundamental importance, a reliable estimate of the Galactic nova rate has remained elusive. Here, the overall Galactic nova rate is estimated by extrapolating the observed rate for novae reaching $m\leq2$ to include the entire…

太阳与恒星天体物理 · 物理学 2017-01-18 A. W. Shafter

We present the results of a preliminary H-alpha survey of M81 for novae conducted over a 5 month interval using the 5' field of view camera (WFCAM) on the Calypso Telescope at Kitt Peak, AZ. We observed M81 nearly every clear night during…

天体物理学 · 物理学 2010-11-19 James D. Neill , Michael M. Shara

We present an analysis of the height distributions of the different types of supernovae (SNe) from the plane of their host galaxies. We use a well-defined sample of 102 nearby SNe appeared inside high-inclined (i > 85 deg), morphologically…

We present a catalog of 93 very-well-observed nova light curves. The light curves were constructed from 229,796 individual measured magnitudes, with the median coverage extending to 8.0 mag below peak and 26% of the light curves following…

太阳与恒星天体物理 · 物理学 2015-05-18 Richard J. Strope , Bradley E. Schaefer , Arne A. Henden

This is the first in a series of papers that present sets of different results for 136 compact, known planetary nebulae within a 10 $\times$ 10 degree region of the Galactic bulge. We use a large, previously unpublished sample of our own…

星系天体物理 · 物理学 2022-12-07 Shuyu Tan , Quentin A. Parker , Albert Zijlstra , Andreas Ritter

We present the results from observing nine Galactic novae in eruption with the Solar Mass Ejection Imager (SMEI) between 2004 and 2009. While many of these novae reached peak magnitudes that were either at or approaching the detection…

While many studies have shown a correlation between properties of the light curves of Type Ia SN (SNe Ia) and properties of their host galaxies, it remains unclear what is driving these correlations. We introduce a new direct method to…

A new multi-epoch H-alpha imaging study of M101 (NGC 5457) has been carried out as part of a larger campaign to study the rate and stellar population of extragalactic novae. The survey yielded a total of 13 nova detections from 10 epochs of…

天体物理学 · 物理学 2009-11-13 E. A. Coelho , A. W. Shafter , K. A. Misselt

Classical Novae were revealed as a surprise source of gamma-rays in Fermi LAT observations. During the first 8 years since the LAT was launched, 6 novae in total have been detected to > 5 sigma in gamma-rays, in contrast to the 69…

高能天体物理现象 · 物理学 2017-04-03 Paul J. Morris , Garret Cotter , Anthony M. Brown , Paula M. Chadwick

CONTEXT. Claims of an X-shaped Galactic bulge were based on the assumption of red clump stars as standard candles in some lines of sight crossing the off-plane bulge. However, some doubts have been cast on whether the two peaks in star…

星系天体物理 · 物理学 2019-07-10 M. Lopez-Corredoira , Y. -W. Lee , F. Garzon , D. Lim

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 peak brightness and subsequent rate of…

太阳与恒星天体物理 · 物理学 2024-04-09 J. Grace Clark , Kamil Hornoch , Allen W. Shafter , Hana Kučáková , Jan Vraštil , Peter Kušnirák , Marek Wolf

We review recent studies on the morphology and distribution with respect to the galactic plane of planetary nebulae (PNs), as well as recent advances in MHD modeling of PNs. We discuss a tentative explanation for the connection between…

天体物理学 · 物理学 2016-08-16 G. García-Segura , J. Franco , J. A. López , N. Langer , M. Różyczka

We obtained the absolute magnitudes, distances, and white dwarf (WD) masses of 32 recent galactic novae based on the time-stretching method for nova light curves. A large part of the light/color curves of two classical novae often overlap…

太阳与恒星天体物理 · 物理学 2019-06-05 Izumi Hachisu , Mariko Kato

The presentation of the light curves of the novae on the logarithmic scale of the radius of the shell ejected during the outburst and in the scale of the amplitude of the outburst simplified the review of the light curves of all the known,…

太阳与恒星天体物理 · 物理学 2020-07-23 A. Rosenbush

A long-term (1995-2016) survey for novae in the nearby Andromeda galaxy (M31) was conducted as part of the Research-Based Science Education initiative. During the course of the survey 180 nights of observation were completed at Kitt Peak,…

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