Results 21 to 30 of about 604 (76)

Coexisting conical bipolar and equatorial outflows from a high-mass protostar [PDF]

, 1998
The BN/KL region in the Orion molecular cloud is an archetype in the study of the formation of stars much more massive than the Sun. This region contains luminous young stars and protostars, but it is difficult to study because of overlying dust and gas.
BF Jones, C Dougados, C. R. Gwinn, C. Schwartz, CJ Chandler, DA Allen, DA Schleuning, DE Kleinmann, DY Gezari, DY Gezari, E Churchwell, FH Shu, G Garay, H Sugai, HAJ Thronson, J. M. Moran, JA Zensus, JM Torrelles, K-I Morita, KM Menten, L. J. Greenhill, LJ Greenhill, M Wardle, MCH Wright, MCH Wright, P. J. Diamond, R Barvainis, R Genzel, R Genzel, R Lucas, R Rao, RA Gaume, RL Plambeck, RL Plambeck, V Migenes, WC Danchi, X Hu   +36 more
core   +2 more sources

Maser Investigation toward Off-Plane Stars (MIOPS): Detection of SiO Masers in the Galactic Thick Disk and Halo

The Astrophysical Journal
Studying stars that are located off the Galactic plane is important for understanding the formation history of the Milky Way. We searched for SiO masers toward off-plane O-rich asymptotic giant branch (AGB) stars from the catalog presented by Mauron et ...
Wenjin Yang, Yuanwei Wu, Yan Gong, Nicolas Mauron, Bo Zhang, Karl M. Menten, Xiaofeng Mai, Dejian Liu, Juan Li, Jingjing Li   +9 more
doaj   +1 more source

Outflow Structure and Velocity Field of Orion Source I: ALMA Imaging of SiO Isotopologue Maser and Thermal Emission

, 2012
Using Science Verification data from the Atacama Large Millimeter/Submillimeter Array (ALMA), we have identified and imaged five rotational transitions (J=5-4 and J=6-5) of the three silicon monoxide isotopologues 28SiO v=0, 1, 2 and 29SiO v=0 and ...
Goddi, Ciriaco, Humphreys, Elizabeth, Niederhofer, Florian   +2 more
core   +1 more source

Investigating Asymmetry Development from SiO to H2O Maser Regions in VX Sagittarii

The Astronomical Journal
Simultaneous very-long-baseline interferometry monitoring observations of H _2 O and SiO masers toward VX Sagittarii were conducted from 2014 February to 2019 January.
Dong-Hwan Yoon, Se-Hyung Cho, Youngjoo Yun, Haneul Yang, Jaeheon Kim   +4 more
doaj   +1 more source

First results from the CALYPSO IRAM-PdBI survey - III. Monopolar jets driven by a proto-binary system in NGC1333-IRAS2A [PDF]

, 2014
Context: The earliest evolutionary stages of low-mass protostars are characterised by hot and fast jets which remove angular momentum from the circumstellar disk, thus allowing mass accretion onto the central object.
A. Belloche, A. J. Maury, C. Codella, F. Gueth, L. Testi, Ph. André, S. Bontemps, S. Cabrit, S. Maret   +8 more
core   +12 more sources

Long-term Simultaneous Monitoring Observations of SiO and H2O Masers toward the Mira Variable WX Serpentis

The Astrophysical Journal Supplement Series
We present the results from long-term simultaneous monitoring observations of SiO and H _2 O masers toward the Mira variable star WX Serpentis. This study has been conducted with 21 m single-dish radio telescopes of the Korean VLBI Network from 2009 June
Jang-Ho Lim, Jaeheon Kim, Se-Hyung Cho, Hyosun Kim, Dong-Hwan Yoon, Seong-Min Son, Kyung-Won Suh   +6 more
doaj   +1 more source

Masers in star forming regions

, 2012
Maser emission plays an important role as a tool in star formation studies. It is widely used for deriving kinematics, as well as the physical conditions of different structures, hidden in the dense environment very close to the young stars, for example ...
Anna Bartkiewicz, Bartkiewicz, Bartkiewicz, Breen, Castangia, De Buizer, Fontani, Furuya, Goddi, Huib Jan van Langevelde, Kalenskii, Kalenskii, Lekht, Marseille, Moscadelli, Moscadelli, Moscadelli, Palau, Pandian, Purcell, Surcis, Surcis, Szymczak, Szymczak, Torstensson, Torstensson, Urquhart, Vlemmings, Vlemmings, Voronkov, Wu   +30 more
core   +1 more source

High-angular resolution observations of methanol in the infrared dark cloud core G11.11-0.12P1 [PDF]

, 2011
Recent studies suggest that infrared dark clouds (IRDCs) have the potential of harboring the earliest stages of massive star formation and indeed evidence for this is found toward distinct regions within them.
Gomez, Laura, Leurini, Silvia, Menten, Karl M., Pillai, Thushara, Wyrowski, Friedrich   +4 more
core   +2 more sources

OH masers in the Milky Way and Local Group galaxies in the SKA era

, 2015
The intense line emission of OH masers is a perfect tracer of regions where new stars are born aswell as of evolved stars, shedding large amounts of processed matter into the interstellar medium. From SKA deep surveys at 18 cm, where the maser lines from
Dawson, Joanne, Ellingsen, Simon, Engels, Dieter, Etoka, Sandra, Imai, Hiroshi, Sjouwerman, Lorant, van Langevelde, Huib   +6 more
core   +1 more source

High-resolution study of a star-forming cluster in the Cep-A HW2 region

, 2007
Due to its relatively small distance (725 pc), the Cepheus A East star-forming region is an ideal laboratory to study massive star formation processes.
Beckwith, Beuther, Brogan, C. Comito, Cesaroni, Comito, Curiel, Curiel, Guilloteau, Gómez, I. Jiménez-Serra, J. Martín-Pintado, Johnson, Martín-Pintado, P. Schilke, Patel, Reynolds, Rodriguez, Sridharan, Stahler, Torrelles, Torrelles, U. Endesfelder   +22 more
core   +2 more sources