Results 41 to 50 of about 220 (138)

The Formation of Stars - From Filaments to Cores to Protostars and Protoplanetary Disks

, 2019
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Di Francesco, James, Kirk, Helen, Johnstone, Doug, Pudritz, Ralph, Basu, Shantanu, Sadavoy, Sarah, Fissel, Laura, Knee, Lewis, Tahani, Merhnoosh, Friesen, Rachel, Coude, Simon, Rosolowsky, Erik, van der Marel, Nienke, Fich, Michel, Wilson, Christine, Matzner, Chris, Dong, Ruobing, Matthews, Brenda, Schieven, Gerald   +18 more
openaire   +2 more sources

Star formation in the Vela Molecular Clouds: A new protostar powering a bipolar jet [PDF]

Astronomy & Astrophysics, 2005
We have performed a detailed study of the star-forming region associated with the IRAS source 08448-4343 in the cloud D of the Vela Molecular Ridge. Our investigation covers a wide spectral range from the near IR, through the thermal IR to the mm-band exploiting both imaging and spectroscopic facilities in each spectral regime.
T. Giannini, F. Massi, L. Podio, D. Lorenzetti, B. Nisini, null A. Caratti o Garatti, R. Liseau, G. Lo Curto, F. Vitali   +8 more
openaire   +1 more source

The SOFIA Massive (SOMA) Star Formation Survey. II. High Luminosity Protostars [PDF]

The Astrophysical Journal, 2019
Abstract We present multiwavelength images observed with SOFIA-FORCAST from ∼10 to 40 μm of seven high luminosity massive protostars, as part of the SOFIA Massive Star Formation Survey. Source morphologies at these wavelengths appear to be influenced by outflow cavities and extinction from dense gas surrounding the protostars.
Mengyao Liu, Jonathan C. Tan, James M. De Buizer, Yichen Zhang, Maria T. Beltrán, Jan E. Staff, Kei E. I. Tanaka, Barbara Whitney, Viviana Rosero   +8 more
openaire   +3 more sources

The Formation of Stars -- From Filaments to Cores to Protostars and Protoplanetry Disks

, 2019
Star formation involves the flow of gas and dust within molecular clouds into protostars and young stellar objects (YSOs) due to gravity. Along the way, these flows are shaped significantly by many other mechanisms, including pressure, turbulent motions, magnetic fields, stellar feedback, jets, and angular momentum.
Di Francesco, James, Kirk, Helen, Johnstone, Doug, Pudritz, Ralph, Basu, Shantanu, Sadavoy, Sarah, Fissel, Laura, Knee, Lewis, Tahani, Mehrnoosh, Friesen, Rachel, Coudé, Simon, Rosolowsky, Erik, van der Marel, Nienke, Fich, Michel, Wilson, Christine, Matzner, Chris, Dong, Ruobing, Matthews, Brenda, Schieven, Gerald   +18 more
openaire   +2 more sources

SpectacularSpitzerImages of the Trifid Nebula: Protostars in a Young, Massive‐Star‐forming Region

The Astrophysical Journal, 2006
Spitzer IRAC and MIPS images of the Trifid Nebula (M20) reveal its spectacular appearance in infrared light, highlighting the nebula's special evolutionary stage. The images feature recently-formed massive protostars and numerous young stellar objects, and a single O star that illuminates the surrounding molecular cloud from which it formed, and unveil
Rho, Jeonghee, Reach, William T., Lefloch, Bertrand, Fazio, Giovanni G.   +3 more
openaire   +3 more sources

Probing the physics of star formation (ProPStar) [PDF]

Astronomy & Astrophysics
Context. The detections of narrow channels of accretion toward protostellar disks, known as streamers, have increased in number in the last few years. However, it is unclear whether streamers are a common feature around protostars that were previously missed, or if they are a rare phenomenon.Aims.
María Teresa Valdivia-Mena, Jaime E. Pineda, Paola Caselli, Dominique M. Segura-Cox, Anika Schmiedeke, Silvia Spezzano, Stella Offner, Alexei V. Ivlev, Michael Kuffmeier, Nichol Cunningham, Roberto Neri, María José Maureira   +11 more
openaire   +5 more sources

From Pre-Stellar Cores to Protostars: The Initial Conditions of Star Formation

, 1999
TeX file, 37 pages, 8 figures, 1 Table - To appear in Protostars & Planets IV, eds. V. Mannings, A. Boss, S. Russell (Tucson: The University of Arizona Press)
Andre, Philippe, Ward-Thompson, Derek, Barsony, Mary   +2 more
openaire   +2 more sources

Variability of Deeply Embedded Protostars: A New Direction for Star Formation?

, 2017
The formation of a star is a dynamic process fed by the gravitational collapse of a molecular cloud core. Theoretical models and observations suggest that the majority of this infalling material settles into a protoplanetary disk before reaching the (proto)star and therefore that disk accretion processes are responsible for the rate at which the (proto)
openaire   +2 more sources

The SOFIA Massive (SOMA) Star Formation Survey. V. Clustered Protostars

The Astrophysical Journal
Abstract We present ∼8–40 μm SOFIA-FORCAST images of seven regions of “clustered” star formation as part of the SOFIA Massive Star Formation Survey. We identify a total of 34 protostar candidates and build their spectral energy distributions (SEDs).
Zoie Telkamp, Rubén Fedriani, Jonathan C. Tan, Chi-Yan Law, Yichen Zhang, Adele Plunkett, Samuel Crowe, Yao-Lun Yang, James M. De Buizer, Maria T. Beltran, Mélisse Bonfand, Ryan Boyden, Giuliana Cosentino, Prasanta Gorai, Mengyao Liu, Viviana Rosero, Kotomi Taniguchi, Kei E. I. Tanaka, Tatiana M. Rodríguez   +18 more
openaire   +4 more sources

Outflows from the youngest stars are mostly molecular. [PDF]

Nature, 2023
Ray TP, McCaughrean MJ, Caratti O Garatti A, Kavanagh PJ, Justtanont K, van Dishoeck EF, Reitsma M, Beuther H, Francis L, Gieser C, Klaassen P, Perotti G, Tychoniec L, van Gelder M, Colina L, Greve TR, Güdel M, Henning T, Lagage PO, Östlin G, Vandenbussche B, Waelkens C, Wright G.   +22 more
europepmc   +1 more source