Results 91 to 100 of about 9,190 (204)

Deuterated methanol on a solar system scale around the HH212 protostar [PDF]

, 2017
Context: Methanol is thought to be mainly formed during the prestellar phase and its deuterated form keeps memory of the conditions at that epoch. Thanks to the unique combination of high angular resolution and sensitivity provided by ALMA, we wish to ...
E. Bianchi, C. Codella, C. Ceccarelli, V. Taquet, S. Cabrit, F. Bacciotti, R. Bachiller, E. Chapillon, F. Gueth, A. Gusdorf, B. Lefloch, S. Leurini, L. Podio, K. Rygl, B. Tabone, M. Tafalla   +15 more
semanticscholar   +1 more source

JWST-IPA: Chemical Inventory and Spatial Mapping of Ices in the Protostar HOPS 370—Evidence for an Opacity Hole and Thermal Processing of Ices

The Astrophysical Journal
The composition of protoplanetary disks, and hence the initial conditions of planet formation, may be strongly influenced by the infall and thermal processing of material during the protostellar phase.
Himanshu Tyagi, P. Manoj, Mayank Narang, S. Thomas Megeath, Will R. M. Rocha, Nashanty Brunken, Adam E. Rubinstein, Robert Gutermuth, Neal J. Evans II, Ewine F. Van Dishoeck, Samuel Federman, Dan M. Watson, David A. Neufeld, Guillem Anglada, Henrik Beuther, Alessio Caratti o Garatti, Leslie W. Looney, Pooneh Nazari, Mayra Osorio, Thomas Stanke, Yao-Lun Yang, Tyler L. Bourke, William J. Fischer, Elise Furlan, Joel Green, Nolan Habel, Pamela Klaassen, Nicole Karnath, Hendrik Linz, James Muzerolle, John J. Tobin, Prabhani Atnagulov, Rohan Rahatgaonkar, Patrick Sheehan, Katerina Slavicinska, Amelia M. Stutz, Lukasz Tychoniec, Scott Wolk, Wafa Zakri   +38 more
doaj   +1 more source

Star Formation Under the Outflow: The Discovery of a Non-thermal Jet from OMC-2 FIR 3 and Its Relationship to the Deeply Embedded FIR 4 Protostar [PDF]

, 2017
We carried out multiwavelength (0.7–5 cm), multi-epoch (1994–2015) Very Large Array (VLA) observations toward the region enclosing the bright far-IR sources FIR 3 (HOPS 370) and FIR 4 (HOPS 108) in OMC-2. We report the detection of 10 radio sources, 7 of
M. Osorio, A. K. Díaz-Rodríguez, G. Anglada, S. Megeath, Luis F. Rodríguez, J. Tobin, A. Stutz, E. Furlan, W. J. Fischer, P. Manoj, José F. Gómez, B. González-García, T. Stanke, D. Watson, L. Loinard, R. Vavrek, C. Carrasco-González   +16 more
semanticscholar   +1 more source

SUBARCSECOND ANALYSIS OF THE INFALLING–ROTATING ENVELOPE AROUND THE CLASS I PROTOSTAR IRAS 04365+2535 [PDF]

, 2016
Subarcsecond images of the rotational line emission of CS and SO have been obtained toward the Class I protostar IRAS 04365+2535 in TMC-1A with ALMA. A compact component around the protostar is clearly detected in the CS and SO emission.
N. Sakai, Y. Oya, A. L'opez-Sepulcre, Yoshimasa Watanabe, T. Sakai, T. Hirota, Y. Aikawa, C. Ceccarelli, B. Lefloch, E. Caux, C. Vastel, C. Kahane, S. Yamamoto   +12 more
semanticscholar   +1 more source

The Outflow of The Protostar in B335. I.

The Astronomical Journal
The isolated globule B335 contains a single, low-luminosity Class 0 protostar associated with a bipolar nebula and outflow system seen nearly perpendicular to its axis.
Klaus W. Hodapp, Laurie L. Chu, Thomas Greene, Michael R. Meyer, Doug Johnstone, Marcia J. Rieke, John Stansberry, Martha Boyer, Charles Beichman, Scott Horner, Tom Roellig, George Rieke, Eric T. Young   +12 more
doaj   +1 more source

LZ-STAR Survey: Low-metallicity Star Formation Survey of Sh2-284. I. Ordered Massive Star Formation in the Outer Galaxy

The Astrophysical Journal
Star formation is a fundamental, yet poorly understood, process of the Universe. It is important to study how star formation occurs in different galactic environments.
Yu Cheng, Jonathan C. Tan, Morten Andersen, Rubén Fedriani, Yichen Zhang, Massimo Robberto, Zhi-Yun Li, Kei E. I. Tanaka   +7 more
doaj   +1 more source

First sample of N₂H⁺ nitrogen isotopic ratio measurements in low-mass protostars [PDF]

, 2020
E Redaelli, L. Bizzocchi, P. Caselli, E Redaelli, L. Bizzocchi, P. Caselli   +5 more
openalex   +1 more source

Early Planet Formation in Embedded Disks (eDisk). XVII. A Compact but Structured Keplerian Disk and Large-scale Streamers Revealed in the Class I Protostellar System IRAS 04169+2702

The Astrophysical Journal
We present high-resolution (∼0 $\mathop{.}\limits^{^{\prime\prime} }$ 05; 8 au) dust continuum and molecular line observations toward the Class I protostellar system IRAS 04169+2702 in the Taurus B213 region, as part of the Atacama Large Millimeter ...
Ilseung Han, Woojin Kwon, Yusuke Aso, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Leslie W. Looney, Yuri Aikawa, Christian Flores, Itziar de Gregorio-Monsalvo, Patrick M. Koch, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Jinshi Sai, Travis J. Thieme, Jonathan P. Williams, Sacha Gavino, Miyu Kido, Shih-Ping Lai, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Hsi-Wei Yen   +24 more
doaj   +1 more source

First Detection of Circular Polarization in Radio Continuum Toward a Massive Protostar

The Astrophysical Journal Letters
Polarization measurements provide strong constraints on magnetic fields in star-forming systems. While magnetic field estimates of a few kG have been obtained near the surfaces of low-mass protostars, there are no analogous measurements in the immediate ...
A. G. Cheriyan, S. Vig, Nirupam Roy, Samir Mandal, C. Carrasco-González, A. Rodríguez-Kamenetzky, A. Pasetto   +6 more
doaj   +1 more source

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