Results 141 to 150 of about 386,435 (271)

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Our Galaxy [version 1; peer review: 2 approved]

Open Research Europe
As we learn more about the multi-scale interstellar medium (ISM) of our Galaxy, we develop a greater understanding for the complex relationships between the large-scale diffuse gas and dust in Giant Molecular Clouds (GMCs), how it moves, how it is ...
Pamela Klaassen, Maria Beltrán, Alessio Traficante, Mark Booth, Kate Pattle, Jonathan Marshall, Joshua Lovell, Brandt Gaches, Alvaro Hacar, Nicolas Peretto, Caroline Bot, Doris Arzoumanian, Thomas Stanke, Gaspard Duchêne, Ana Duarte Cabral, Antonio Hales, David Eden, Patricia Luppe, Jens Kauffmann, Elena Redaelli, Sebastian Marino, Álvaro Sánchez-Monge, Andrew Rigby, Dmitry Semenov, Eugenio Schisano, Mark Thompson, Silvia Spezzano, Claudia Cicone, Friedrich Wyrowski, Martin Cordiner, Tony Mroczkowski, Doug Johnstone, Luca Di Mascolo, Minju Lee, Eelco van Kampen, Thomas Maccarone, Daizhong Liu, Matthew Smith, Amélie Saintonge, Sven Wedemeyer, Alexander Thelen   +40 more
doaj   +1 more source

Extraordinary Late-Time Infrared Emission of Type IIn Supernovae

, 2002
Near-Infrared (NIR) observations are presented for five Type IIn supernovae (SN 1995N, SN 1997ab, SN 1998S, SN 1999Z, and SN 1999el) that exhibit strong infrared excesses at late times (t >= 100 d).
Baird M. D., Bode M. F., Cao L., Christopher L. Gerardy, Chugai N. N., Elias J. H., Garnavich P., Graham J. R., Hagen H.-J., Hagen H.-J., J. Craig Wheeler, Jha S., Ken’ichi Nomoto, Kozasa T., Lewis J. R., Li W.-D., Merrill K. M., Peter Hoflich, Peter M. Challis, Peter M. Garnavich, Pollas C., Qiu Y. L., Robert A. Fesen, Robert P. Kirshner, Saurabh Jha, Schlegel E. M., Schwartz M., Telesco C.   +27 more
core   +1 more source

HD101584: Circumstellar characteristics and evolutionary status

, 2019
We have performed a study of the characteristics of the circumstellar environment of the binary object HD101584, that provides information on a likely evolutionary scenario.
Bergman, P., Doan, L., Humphreys, E. M. L., Khouri, T., Lindqvist, M., Maercker, M., Nyman, L., Olofsson, H., Ramstedt, S., Tafoya, D., Vlemmings, W. H. T.   +10 more
core   +1 more source

Dusty Blue Supergiants: News from High-Angular Resolution Observations

Advances in Astronomy, 2014
An overview is presented of the recent advances in understanding the B[e] phenomenon among blue supergiant stars in light of high-angular resolution observations and with an emphasis on the results obtained by means of long baseline optical stellar ...
W. J. de Wit, R. D. Oudmaijer, J. S. Vink   +2 more
doaj   +1 more source

The last gasps of VY CMa: Aperture synthesis and adaptive optics imagery

, 1998
We present new observations of the red supergiant VY CMa at 1.25 micron, 1.65 micron, 2.26 micron, 3.08 micron and 4.8 micron. Two complementary observational techniques were utilized: non-redundant aperture masking on the 10-m Keck-I telescope yielding ...
B. Lopez, Bensammar S., Benson J. M., C. A. Haniff, Cornwell T. J., Cruzalebes P., David P., Efstathiou A., Gull S. F., Haniff C. A., Heger A., Heger A., Hogbom J., J. D. Monnier, Jennison R. C., Lacombe F., Le Bertre T., Le Sidaner P., Lopez B., Maihara T., Morris M., Ossenkopf V., P. Cruzalebes, P. G. Tuthill, Papoular R., Stone R. C., Tuthill P. G., W. C. Danchi, Wallerstein G., Wilson R. W.   +29 more
core   +1 more source

Hα Emission among Evolved FGKM Stars: A Compendium from the Literature

The Astronomical Journal
Emission in the wings of the H α line among late-type giant stars occurs as a consequence of conditions in their chromospheres. Data from the literature have been used to document the incidence of H α emission among Population I giant stars as a function
Graeme H. Smith
doaj   +1 more source

Dust distribution in circumstellar disks harboring multi-planet systems

Astronomy & Astrophysics
Context. Theoretical formation models and exoplanet detection surveys indicate that systems with multiple giant planets are common. Aims. We investigate how multiple super-thermal-mass planets embedded in a circumstellar disk shape the dust distribution ...
Roatti V., Picogna G., Marzari F.
doaj   +1 more source

The Dust Properties of Eight Debris Disk Candidates as Determined by Submillimeter Photometry

, 2006
The nature of far-infrared dust emission toward main sequence stars, whether interstellar or circumstellar, can be deduced from submillimeter photometry.
Boulanger F., de Muizon M. J., Jonathan P. Williams, Sean M. Andrews   +3 more
core   +2 more sources

Axisymmetric models of circumstellar dust shells

The Astrophysical Journal, 1991
Luminosity constant models of axisymmetric circumstellar dust shells are calculated. The models consist of either donut-like or disklike distributions of silicate grains surrounding a 3000 K star. An iterative scheme is used to solve the radiative transfer problem taking into account both scattered and thermal radiation.
Alan J. Collison, John D. Fix
openaire   +1 more source

Ring-gap Structures in the Class I Circumstellar Disk of CrA IRS 2 Associated with the Magnetic Flux-driven Bubble

The Astrophysical Journal
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations with 0 $\mathop{.}\limits^{^{\prime\prime} }$ 1 resolution have revealed characteristic substructures in circumstellar disks around young Class I sources, providing clues to the ...
Ayumu Shoshi, Masayuki Yamaguchi, Mitsuki Omura, Kazuki Tokuda, Naofumi Fukaya, Kengo Tachihara, Masahiro N. Machida   +6 more
doaj   +1 more source