Results 41 to 50 of about 13,402 (159)

Unveiling the white dwarf in the eclipsing polar HU Aquarii

Astronomy & Astrophysics
We present an analysis of high-speed u- and r-band photometry of the eclipsing polar HU Aqr that was obtained with ULTRACAM mounted on the VLT. The observations were performed during a low state, permitting us for the first time to determine the contact ...
Schwope A. D., Marsh T. R., Parsons S. G., Vogel J., Dhillon V. S.   +4 more
doaj   +1 more source

High Energy Emission of Symbiotic Recurrent Novae: RS Oph and V407 Cyg

Open Astronomy, 2012
Recurrent novae occurring in symbiotic binaries are candidate sources of high energy photons, reaching GeV energies. Such emission is a consequence of particle acceleration leading to pion production.
Hernanz M., Tatischeff V.
doaj   +1 more source

novae-angliae

, 1971
Symphyotrichum novae-angliae (Linnaeus) G.L. NesomAster novae-angliaeDurham; Bank of Oyster R. above damFls.
4716 Dave Conant; D.E. Boufford
core  

On the Light Curves of Disk and Bulge Novae

The Astrophysical Journal
We examine the light curves of a sample of novae, classifying them into single-peaked and multiple-peaked morphologies. Using accurate distances from Gaia, we determine the spatial distribution of these novae by computing their heights, Z , above the ...
Asaf Cohen, Dafne Guetta, Yael Hillman, Massimo Della Valle, Luca Izzo, Volker Perdelwitz, Mario Livio   +6 more
doaj   +1 more source

Direct reactions for astrophysical p-capture rates with ORRUBA and GODDESS

Frontiers in Physics
Understanding the nucleosynthesis and energy generation in quiescent and explosive stellar burning requires a detailed understanding of reaction rates on many unstable nuclides.
S. D. Pain
doaj   +1 more source

Long-Term Photometry of Very Slow Novae

Open Astronomy, 2003
Long-term photographic, photoelectric and recent CCD photometry of the classical nova V723 Cas and symbiotic novae V1329 Cyg, PU Vul, V1016 Cyg and HM Sge were used to find their orbital periods.
Chochol D., Pribulla T., Parimucha Š., Vaňko M.   +3 more
doaj   +1 more source

novae-angliae

, 1975
Symphyotrichum novae-angliae (Linnaeus) G.L. NesomAster novae-angliaeNorthampton, on Damon Rd., near jct. of Int.
81719 H.E. Ahles
core  

Classical novae and recurrent novae: General properties [PDF]

, 1993
We describe the observable characteristics of classical novae and recurrent novae obtained by different techniques (photometry, spectroscopy, and imaging) in all the available spectral ranges.
Selvelli, Pierluigi, Duerbeck, Hilmar W., Hack, Margherita   +2 more
core  

Fully Self-consistent Nova Explosion Models Reproducing Light Curves of KT Eri, V339 Del, V597 Pup, and SMC NOVA 2016-10a

The Astrophysical Journal
The rising phase toward the optical maximum of a classical nova is one of the last frontiers of nova study. Constructing free–free emission model light curves based on our fully self-consistent nova explosion models, we present several theoretical light ...
Mariko Kato, Izumi Hachisu, Hideyuki Saio   +2 more
doaj   +1 more source

The hybrid Nova Vul 2024 (=V615 Vul)

Astronomy & Astrophysics
Context. Among galactic novae, many remain poorly characterized due to heterogeneous data, observational challenges, or heavy reddening along the Galactic plane.
Valisa P., Munari U., Albanese I.
doaj   +1 more source