Results 31 to 40 of about 288,104 (243)

The Way of Water: ALMA Resolves H2O Emission Lines in a Strongly Lensed Dusty Star-forming Galaxy at z ∼ 3.1

The Astrophysical Journal, 2023
We report Atacama Large Millimeter/submillimeter Array (ALMA) high-resolution (≲0.3″) observations of water emission lines p -H _2 O(2 _02 − 1 _11 ), o -H _2 O(3 _21 − 3 _12 ), p -H _2 O(4 _22 − 4 _13 ), in the strongly lensed galaxy HATLASJ113526.2 ...
Francesca Perrotta, Marika Giulietti, Marcella Massardi, Giovanni Gandolfi, Tommaso Ronconi, Maria Vittoria Zanchettin, Quirino D’ Amato, Meriem Behiri, Martina Torsello, Francesco Gabrielli, Lumen Boco, Vincenzo Galluzzi, Andrea Lapi   +12 more
doaj   +1 more source

Origin of optically passive spiral galaxies with dusty star-forming regions: Outside-in truncation of star formation?

, 2010
Recent observations have revealed that red, optically--passive spiral galaxies with little or no optical emission lines, harbour significant amounts of dust-obscured star formation.
Abadi, Bekki, Bekki, Bekki, Bekki, Bekki, Couch, Couch, Dressler, Dwek, Evans, Friel, Gallazzi, Goto, Kenji Bekki, Koopmann, Kronberger, Masters, Meurer, Moran, Navarro, Noguchi, Poggianti, Schmidt, Shioya, Shioya, Spitzer, Sugimoto, Warrick J. Couch, Wilman, Wolf, Wolf, Yamauchi   +32 more
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

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

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

Identifying Physical Structures in Our Galaxy with Gaussian Mixture Models: An Unsupervised Machine Learning Technique

The Astrophysical Journal, 2023
We explore the potential of the Gaussian mixture model (GMM), an unsupervised machine-learning method, to identify coherent physical structures in the interstellar medium.
M. Tiwari, R. Kievit, S. Kabanovic, L. Bonne, F. Falasca, C. Guevara, R. Higgins, M. Justen, R. Karim, Ü. Kavak, C. Pabst, M. W. Pound, N. Schneider, R. Simon, J. Stutzki, M. Wolfire, A. G. G. M. Tielens   +16 more
doaj   +1 more source

Dense Outflowing Molecular Gas in Massive Star-forming Regions

The Astronomical Journal
Dense outflowing gas, traced by transitions of molecules with large dipole moment, is important for understanding mass loss and feedback of massive star formation.
Yani Xu, Junzhi Wang, Shu Liu, Juan Li, Yuqiang Li, Rui Luo, Chao Ou, Siqi Zheng, Yijia Liu   +8 more
doaj   +1 more source

Deuterated species in extragalactic star-forming regions

, 2010
We present a theoretical study of the deuterated species detectability in various types of extragalactic star-forming regions based on our predictions of chemical abundances. This work is motivated by the past and current attempts at observing deuterated
Aladro, Bacmann, Bayet, Bayet, Bayet, Carilli, Cazaux, Ceccarelli, E. Bayet, Gerin, Jacq, Jacq, Jiang, Knauth, Leroy, Madden, Martín, Mauersberger, Mauersberger, Meijerink, Meyer, Millar, Oliveira, Parra, Rawlings, Riechers, Roberts, Roberts, Roberts, Roueff, S. Viti, Schilke, Seymour, Snow, Sofia, Stark, Tielens, Vastel, Walmsley, Watson, Z. Awad   +40 more
core   +1 more source

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim, Natalie Bradford, David Brain, Sameera Senanayake, Sanjeewa Kularatna, Kate Young, Christine Cashion, Tim Hassall, Susanna Cramb   +8 more
wiley   +1 more source

Cosmic-Ray Propagation in Young Embedded Clusters

The Astrophysical Journal
This paper constructs a quantitative description for the geometrical properties of young stellar clusters using a Delaunay mesh. This approach defines the paths that connect cluster members and can be used to characterize the distribution of path lengths
Marco Fatuzzo, Fred C. Adams
doaj   +1 more source