Results 81 to 90 of about 3,519 (205)

Methanol Ice in the Protostar GL 2136 [PDF]

, 1992
We present ground-based spectra in the 10 and 20 micron atmospheric windows of the deeply embedded protostar GL 2136. These reveal narrow absorption features at 9.7 and 8.9 microns, which we ascribe to the CO-stretch and CH3 rock (respectively) of solid ...
BARLOW, MJ, JUSTTANONT, K, TIELENS, A, SKINNER, CJ   +3 more
core   +1 more source

Discovery of a Collimated Jet from the Low-luminosity Protostar IRAS 16253−2429 in a Quiescent Accretion Phase with the JWST

The Astrophysical Journal Letters
Investigating Protostellar Accretion (IPA) is a JWST Cycle 1 GO program that uses NIRSpec integral field units and MIRI Medium Resolution Spectrograph to obtain 2.9–28 μ m spectral cubes of young, deeply embedded protostars with luminosities of 0.2–10 ...
Mayank Narang, P. Manoj, Himanshu Tyagi, Dan M. Watson, S. Thomas Megeath, Samuel Federman, Adam E. Rubinstein, Robert Gutermuth, Alessio Caratti o Garatti, Henrik Beuther, Tyler L. Bourke, Ewine F. Van Dishoeck, Neal J. Evans II, Guillem Anglada, Mayra Osorio, Thomas Stanke, James Muzerolle, Leslie W. Looney, Yao-Lun Yang, Pamela Klaassen, Nicole Karnath, Prabhani Atnagulov, Nashanty Brunken, William J. Fischer, Elise Furlan, Joel Green, Nolan Habel, Lee Hartmann, Hendrik Linz, Pooneh Nazari, Riwaj Pokhrel, Rohan Rahatgaonkar, Will R. M. Rocha, Patrick Sheehan, Katerina Slavicinska, Amelia M. Stutz, John J. Tobin, Lukasz Tychoniec, Scott Wolk   +38 more
doaj   +1 more source

DISCOVERY OF A MASSIVE PROTOSTAR NEAR IRAS 18507+0121 [PDF]

, 2004
We have observed the massive star-forming region IRAS 18507+0121 at millimeter wavelengths in 3 mm continuum emission, H13CO+ ( J ¼ 1 0) and SiO (v ¼ 0, J ¼ 2 1) line emission, and at near-infrared (NIR) wavelengths between 1.2 and 2.1 m.
Bronfman Aguiló, Leonardo, Nürnberger, D. E. A., Shepherd, D. S.   +2 more
core  

Complex Organic Molecules tracing shocks along the outflow cavity in the high-mass protostar IRAS 20126+4104 [PDF]

, 2017
We report on subarcsecond observations of complex organic molecules (COMs) in the high-mass protostar IRAS 20126+4104 with the Plateau de Bure Interferometer in its most extended configurations. In addition to the simple molecules SO, HNCO and H₂¹³CO, we
Cesaroni, R, Walsh, C, Girart, J.M., Neri, R., Palau, A, Sánchez-Monge, Á., Palau, A., Zapata, LA, Neri, Roberto, Walsh, C., Jiménez-Serra, Izaskun, Cesaroni, R., CESARONI, Riccardo, Girart, JM, Fuente, A, Jiménez-Serra, I., Zapata, L.A., Walsh, Catherine, Neri, R, Zapata, Luis A., Jiménez-Serra, I, Palau, Aina, Fuente, Asunción, Sánchez-Monge, Á, Sánchez-Monge, Álvaro, Fuente, A., Girart, Josep M.   +26 more
core   +1 more source

WARPfold : Wrongfield ARithmetic for Protostar folding [PDF]

Inspired by range-check trick from recent Latticefold paper we construct elliptic-curve based IVC capable of simulating non-native arithmetic efficiently.
Lev Soukhanov
core  

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

88th Annual Meeting of the Meteoritical Society 2026: Contents

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S2-S47, August 2026.
wiley   +1 more source

The Structure and Kinematics of Three Class 0 Protostellar Jets from JWST

The Astrophysical Journal
We present observations of jets within 2000 au of three deeply embedded protostars using 2.9–27 μ m observations with JWST. These observations show the morphologies and kinematics of the collimated jets from three protostars, the low-mass Class 0 ...
Samuel A. Federman, S. Thomas Megeath, Alessio Caratti o Garatti, Mayank Narang, Himanshu Tyagi, Neal J. Evans II, Carolin N. Kimmig, Łukasz Tychoniec, Henrik Beuther, Amelia Stutz, P. Manoj, Robert Gutermuth, Tyler L. Bourke, Joel Green, Lee Hartmann, Pamela Klaassen, Rolf Kuiper, Leslie W. Looney, Pooneh Nazari, Thomas Stanke, Dan M. Watson, Yao-Lun Yang, Wafa Zakri   +22 more
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

High-resolution Mid-infrared Spectroscopy of SVS13-A with EXES/SOFIA: The Surprisingly High CH3OH/H2O Ratio in the Planet-forming Zone of a Solar Mass Protostar

The Astrophysical Journal Letters
Water and methanol are key components of interstellar ices and gas in star- and planet-forming regions, but direct observations of water in low-mass protostars are challenging due to atmospheric absorption.
Curtis DeWitt, Marta De Simone, Eleonora Bianchi, Cecilia Ceccarelli, Claudio Codella, Sarah Nickerson, Keeyoon Sung, Albert Rimola, Vittorio Bariosco, Piero Uliengo, Naseem Rangwala   +10 more
doaj   +1 more source