Results 111 to 120 of about 1,478 (224)

H I and CO in the circumstellar environment of the oxygen-rich AGB star RX Leporis

, 2008
International audienceContext: Circumstellar shells around AGB stars are built over long periods of time that may reach several million years. They may therefore be extended over large sizes ( 1 pc, possibly more), and different complementary tracers are
Libert, Yannick, Gérard, Éric, Winters, Jan Martin, Le Bertre, Thibaut   +3 more
core   +1 more source

A Spectroscopic and Photometric Study of MWC 342 and Its B[e] Phenomenon over the Last 40 Years

Galaxies
MWC 342 (V1972 Cyg) was discovered nearly 90 years ago as an early-type emission-line star. It was among the first hot stars whose strong infrared excess was detected in the early 1970s.
Aigerim Zh. Akniyazova, Anatoly S. Miroshnichenko, Sergey V. Zharikov, Hans Van Winckel, Nadine Manset, Ashish Raj, Stephen Drew Chojnowski, Serik A. Khokhlov, Inna V. Reva, Raushan I. Kokumbaeva, Chingis T. Omarov, Konstantin N. Grankin, Aldiyar T. Agishev, Nadezhda L. Vaidman   +13 more
doaj   +1 more source

Modeling the Continuum Emission from the Circumstellar Environment of Herbig Ae/Be Stars

, 2004
This paper discusses a model for the continuum emission of the Herbig Ae/Be stars in the light of an updated set of observational data spanning 5 orders of magnitude in wavelength and including the low-resolution spectra obtained with the Short ...
NISINI B., ELIA, Davide Quintino, STRAFELLA, Francesco, GIANNINI T., LORENZETTI D., CAMPEGGIO, Loretta, PEZZUTO S.   +6 more
core  

Evolution of the circumstellar disc of alpha Eri

, 2006
3 pages ; to appear in the proceedings of the Sapporo meeting on active OB stars ; ASP Conference Series ; eds: S. Stefl, S. Owocki and A. OkazakiThe Halpha line emission formation region in the circumstellar disc of alpha Eri is: a) extended with a ...
Vinicius, M.M.F., Leister, N.V., Zorec, J., Levenhagen, R.S.   +3 more
core  

Evidence for an Instability-induced Binary Merger in the Double-peaked, Helium-rich Type IIn Supernova 2023zkd

The Astrophysical Journal
We present ultraviolet to infrared observations of the extraordinary Type IIn supernova 2023zkd (SN 2023zkd). Photometrically, it exhibits persistent and luminous precursor emission spanning ∼4 yr preceding discovery ( M _r  ≈ −15 mag, 1500 days in the ...
A. Gagliano, V. A. Villar, T. Matsumoto, D. O. Jones, C. L. Ransome, A. E. Nugent, D. Hiramatsu, K. Auchettl, D. Tsuna, Y. Dong, S. Gomez, P. D. Aleo, C. R. Angus, T. de Boer, K. A. Bostroem, K. C. Chambers, D. A. Coulter, K. W. Davis, J. R. Fairlamb, J. Farah, D. Farias, R. J. Foley, C. Gall, H. Gao, E. P. Gonzalez, D. A. Howell, M. E. Huber, C. D. Kilpatrick, C.-C. Lin, T. B. Lowe, M. E. MacLeod, E. A. Magnier, C. McCully, P. Mínguez, G. Narayan, M. Newsome, K. C. Patra, A. Rest, S. Rest, S. Smartt, K. W. Smith, G. Terreran, R. J. Wainscoat, Q. Wang, S. K. Yadavalli, Y. Zenati   +45 more
doaj   +1 more source

AS 314: A Massive Dusty Hypergiant or a Low-Mass Post-Asymptotic Giant Branch Object?

Galaxies
AS 314 (V452 Sct) is a poorly studied early-type emission-line star, which exhibits an infrared excess at wavelengths longer than 10 μm. Its earlier studies have been limited to small amounts of observational data and led to controversial conclusions ...
Aigerim Bakhytkyzy, Anatoly S. Miroshnichenko, Valentina G. Klochkova, Vladimir E. Panchuk, Sergey V. Zharikov, Laurent Mahy, Hans Van Winckel, Aldiyar T. Agishev, Serik A. Khokhlov   +8 more
doaj   +1 more source

History of two mass loss processes in VY CMa. [PDF]

Proc Int Astron Union, 2023
Quintana-Lacaci G, Velilla L, Fonfría JP, Cernicharo J, Castro-Carrizo A, Agúndez M, Decin L.   +6 more
europepmc   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

**Volume Title** ASP Conference Series, Vol. **Volume Number** **Author** c ○ **Copyright Year* * Astronomical Society of the Pacific The Dynamical Role of Radiative Driving in the Sources and Sinks of Circumstellar Matter in Massive Stars

, 2014
. The high luminosity of massive stars drives strong stellar wind outflows. In magnetic massive stars, the channeling and trapping of wind material can feed a circumstellar magnetosphere, characterized either by transient suspension and dynamical infall ...
Stan Owocki
core  

EVIDENCE OF CIRCUMSTELLAR MATTER SURROUNDING THE HERCULES-X-1 SYSTEM

, 1994
We analyze data from two eclipse ingresses of Her X-1 observed with Ginga on 1989 April 30 and May 19. These observations occur, respectively, during the MAIN HIGH and SHORT HIGH states in the 35 day modulation of Her X-1 intensity.
DOTANI, T, Min, KyoungWook, CHOI, CS, MAKINO, F, DEETER, JE, NAGASE, F   +5 more
core