Results 41 to 50 of about 318,054 (345)

Ices in star forming regions [PDF]

Symposium - International Astronomical Union, 1997
IR spectra of sources associated with molecular cloud material show a variety of absorption features attributed to simple molecules, such as H2O, CO, CH3OH, CO2, CH4, and OCS in icy grain mantles. These identifications are reviewed. These molecules are formed through accretion and reaction of gas phase species on grain surfaces.
Alexander G. G. M. Tielens, Douglas C. B. Whittet   +1 more
openaire   +2 more sources

Galaxy Interactions in Compact Groups II: abundance and kinematic anomalies in HCG 91c [PDF]

, 2015
Galaxies in Hickson Compact Group 91 (HCG 91) were observed with the WiFeS integral field spectrograph as part of our ongoing campaign targeting the ionized gas physics and kinematics inside star forming members of compact groups.
Borthakur, S., Chambers, K. C., Dopita, M. A., Heckman, T. M., Verdes-Montenegro, L., Vogt, F. P. A., Yun, M. S.   +6 more
core   +2 more sources

Disentangling the role of environmental processes in galaxy clusters

, 2012
In this work we present the results of a novel approach devoted to disentangle the role of the environmental processes affecting galaxies in clusters. This is based on the analysis of the NUV-r' distributions of a large sample of star-forming galaxies in
Abazajian, Adelman-McCarthy, Baldry, Bekki, Bekki, Bianchi, Buat, Byrd, den Hartog, Dressler, Evrard, Fujita, Gómez, Hernández-Fernández, Icke, Iglesias-Páramo, J. Iglesias-Páramo, J. M. Vílchez, Jonathan D. Hernández-Fernández, Kaiser, Kauffmann, Leitherer, Mahdavi, Mahdavi, Martin, Mihos, Mo, Moore, Natarajan, Poggianti, Rines, Rines, Salim, Stoughton, Strateva, Strauss, Treu   +36 more
core   +1 more source

The Gaia-ESO Survey: metallicity of the Chamaeleon I star forming region [PDF]

, 2014
Context. Recent metallicity determinations in young open clusters and star-forming regions suggest that the latter may be characterized by a slightly lower metallicity than the Sun and older clusters in the solar vicinity.
Adibekyan, V., Alfaro, E. J., Bensby, T., Bergemann, M., Biazzo, K., Bonito, R., Bragaglia, A., Costado, M. T., Damiani, F., de Laverny, P., Delgado-Mena, E., Flaccomio, E., Franciosini, E., Frasca, A., Gilmore, G., Hernandez, J. I. Gonzalez, Hill, V., Hourihane, A., Jeffries, R. D., Jofre, P., Korn, A. J., Lanzafame, A. C., Lardo, C., Magrini, L., Masseron, T., Montes, D., Morbidelli, L., Palla, F., Pancino, E., Prisinzano, L., Randich, S., Recio-Blanco, A., Sacco, G. G., Smiljanic, R., Sousa, S. G., Spina, L., Tabernero, H., Tautvaisiene, G., Vallenari, A., Worley, C. C.   +39 more
core   +2 more sources

The Lifetimes of Phases in High-Mass Star-Forming Regions

, 2017
High-mass stars form within star clusters from dense, molecular regions, but is the process of cluster formation slow and hydrostatic or quick and dynamic? We link the physical properties of high-mass star-forming regions with their evolutionary stage in
Bally, John, Battersby, Cara, Svoboda, Brian   +2 more
core   +1 more source

On the distance to the Ophiuchus star‐forming region [PDF]

Astronomische Nachrichten, 2008
AbstractThe Ophiuchus molecular cloud complex has produced in Lynds 1688 the richest known embedded cluster within ∼300 pc of the Sun. Unfortunately, distance estimates to the Oph complex vary by nearly ∼40% (∼120–165 pc). Here I calculate a new independent distance estimate of 135±8 pc to this benchmark star‐forming region based on Hipparcos ...
openaire   +3 more sources

Anomalous Microwave Emission from Star Forming Regions

Advances in Astronomy, 2013
The evidence for microwave emission from spinning dust grains has been strengthened considerably by its detection in a number of discrete astrophysical objects associated with star formation.
Anna M. M. Scaife
doaj   +1 more source

Exploring Stellar Cluster and Feedback-driven Star Formation in the Galactic Mid-infrared Bubble [HKS2019] E70

The Astrophysical Journal, 2023
We present a comprehensive analysis of the Galactic mid-infrared bubble [HKS2019] E70 (E70) by adopting a multiwavelength approach to understand the physical environment and star formation scenario around it.
Aayushi Verma, Saurabh Sharma, Kshitiz K. Mallick, Lokesh Dewangan, Devendra K. Ojha, Ram Kesh Yadav, Rakesh Pandey, Arpan Ghosh, Harmeen Kaur, Neelam Panwar, Tarak Chand   +10 more
doaj   +1 more source

Star-Forming Regions near GRB 990123 [PDF]

, 1999
We reduced the Hubble Space Telescope Space Telescope Imaging Spectrograph images of the gamma-ray burst GRB 990123 that were obtained on 8-9 February 1999 and find V_0 = 25.36 +/- 0.10, which corresponds to a flux of 0.258 +/- 0.023 micro-Jy for the ...
Hjorth, Jens, Holland, Stephen
core   +1 more source

The use of extra-galactic star formation tracers on star forming regions in the Milky Way [PDF]

, 2016
We studied three groups of star forming clouds in the Milky Way: 5 clouds from Spitzer c2d Legacy survey, 10 clouds from Gould Belt survey, and 32 massive dense clumps.
Vutisalchavakul, Nalin
core   +1 more source