Results 21 to 30 of about 14,460 (279)

Nova KT Eri 2009: infrared studies of a very fast and small amplitude He/N nova [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
We present near-infrared spectroscopic and photometric observations of the nova KT Eridani taken during the first 100 days following its discovery in 2009 November. The JHK spectra of the object have been taken from the Mount Abu Infrared Observatory using the Near-Infrared Imager/Spectrometer.
Raj, Ashish, Banerjee, D. P. K., Ashok, N. M.   +2 more
openaire   +2 more sources

Spectral evolution of the extremely fast classical nova V838 Herculis [PDF]

Astronomy and Astrophysics, 2010
Spectral evolution of nova V838 Her 1991 was monitored at Asiago Astrophysical Observatory from 1991 March 31 to July 2. The spectra in the early decline stage showed emission lines of H I, He I, He II, N II, N III, C II, C III, C IV, Si II, [S III], [Ne III], and Fe II, where some identifications are different from those reported in the previous works.
T. Iijima, A. Cassatella
openaire   +1 more source

Beryllium detection in the very fast nova asassn-16kt (v407 lupi) [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Regular
Izzo, L, Molaro, P, Bonifacio, P, Della Valle, M, Cano, Z, de Ugarte Postigo, A, Prieto, J L, Thone, C, Vanzi, L, Zapata, A   +9 more
openaire   +9 more sources

The Unusually Luminous Extragalactic Nova SN 2010U [PDF]

, 2012
We present observations of the unusual optical transient SN 2010U, including spectra taken 1.03 days to 15.3 days after maximum light that identify it as a fast and luminous Fe II type nova.
Berger, E., Botticella, M. T., Challis, P., Chornock, R., Czekala, Ian, Ergon, M., Margutti, R., Marion, G. H., Pastorello, A., Smartt, S., Sollerman, J., Vinkó, J., Wheeler, J. C.   +12 more
core   +2 more sources

On the Rebrightenings of Classical Novae during the Early Phase [PDF]

, 2010
We report on the spectral evolution of 6 classical novae, V1186 Sco, V2540 Oph, V4745 Sgr, V5113 Sgr, V458 Vul, and V378 Ser, based on the low-resolution spectra obtained at the Fujii-Bisei Observatory and the Bisei Astronomical Observatory, Japan.
Ayani, Kazuya, Fujii, Mitsugu, Kato, Taichi, Nogami, Daisaku, Tanaka, Jumpei   +4 more
core   +1 more source

The peculiar fast nova Herculis 1991

The Astrophysical Journal, 1992
Unlike previously observed fast novae, the temporal evolution of Nova Her 1991 is similar to slower, dusty novae in which the appearance of thermal infrared emission from condensing dust was coincident with a transition in the visible light curve. However, the total luminosity radiated by Nova Her 1991 in the infrared was only ∼5% of the outburst ...
Charles E. Woodward, R. D. Gehrz, Terry J. Jones, G. F. Lawrence   +3 more
openaire   +1 more source

M31N 2005-09c: a fast Fe II nova in the disk of M 31 [PDF]

Astronomy & Astrophysics, 2007
Classical novae are quite frequent in M~31. However, very few spectra of M31 novae have been studied to date, especially during the early decline phase. Our aim is to study the photometric and spectral evolution of a M31 nova event close to outburst. We present photometric and spectroscopic observations of M31N 2005-09c, a classical nova in the disk of
Hatzidimitriou, D., Reig, P., Manousakis, A., Pietsch, W., Burwitz, V., Papamastorakis, I.   +5 more
openaire   +3 more sources

Constraining the role of novae as progenitors of Type Ia Supernovae [PDF]

, 2015
(Abridged) White dwarfs (WDs) undergoing unstable nuclear burning on their surfaces, resulting in the nova phenomenon, have been considered as one of the prospective candidates for the still elusive progenitors of SNeIa.
Gilfanov, Marat, Soraisam, Monika
core   +2 more sources

The local stellar population of nova regions in the Large Magellanic Cloud [PDF]

, 2002
This study aims at identifying and understanding the parent population of novae in the Large Magellanic Cloud (LMC) by studying the local, projected, stellar population. The star formation history of the local environment around novae is studied based on
A. Subramaniam, Andrillat, Ardeberg, Bica, Bressan, Buscombe, Butcher, Canterna, Capaccioli, Capaccioli, Chandar, Ciardullo, Ciardullo, Della Valle, Della Valle, Della Valle, Della Valle, Della Valle, Dickel, Dolphin, Duerbeck, G. C. Anupama, Geha, Girardi, Hachisu, Hatano, Hatano, Kato, Ma, Olsen, Orio, Piatti, Pietrzynski, Pietrzynski, Pritchet, Rejkuba, Schwarz, Schwarz, Searle, Sekiguchi, Sekiguchi, Shore, Starrfield, Starrfield, Udalski, Udalski, Udalski, van den Bergh, Vanlandingham, Yungelson   +49 more
core   +2 more sources

Classical novae from the POINT-AGAPE microlensing survey of M31 -- I. The nova catalogue [PDF]

, 2004
The POINT-AGAPE survey is an optical search for gravitational microlensing events towards the Andromeda Galaxy (M31). As well as microlensing, the survey is sensitive to many different classes of variable stars and transients.
A. Gould, A. M. Newsam, Adams, An, An, Arp, B. J. Carr, Bertaud, Bode, Buscombe, C. S. Stalin, Capaccioli, Ciardullo, Ciardullo, Ciardullo, Ciardullo, Crane, Crawford, Darnley, de Vaucouleurs, Drechsel, Duerbeck, E. Kerins, Haiman, Hubble, J. An, J. Kaplan, Joshi, Kerins, King, M. Crézé, M. F. Bode, M. J. Darnley, Magnier, McLaughlin, McLaughlin, McLaughlin, McLaughlin, N. W. Evans, P. Baillon, P. Hewett, Paulin-Henriksson, Payne-Gaposchkin, Ph. Jetzer, Rector, Rosino, Rosino, Rosino, S. Calchi Novati, S. J. Smartt, S. Paulin-Henriksson, Shafter, Shafter, Shara, Sharov, Sharov, Stanek, Starrfield, Tomaney, van den Bergh, Warner, Y. Giraud-Héraud, Y. Tsapras   +62 more
core   +3 more sources