Results 61 to 70 of about 3,519 (205)

Crescent-shaped Molecular Outflow from the Intermediate-mass Protostar DK Cha Revealed by ALMA

The Astrophysical Journal, 2023
We report on an Atacama Large Millimeter/submillimeter Array study of the Class I or II intermediate-mass protostar DK Cha in the Chamaeleon II region.
Naoto Harada, Kazuki Tokuda, Hayao Yamasaki, Asako Sato, Mitsuki Omura, Shingo Hirano, Toshikazu Onishi, Kengo Tachihara, Masahiro N. Machida   +8 more
doaj   +1 more source

Unveiling a Few Astronomical Unit Scale Rotation Structure around the Protostar in B335

, 2019
International audienceWe report a kinematic structure in the innermost envelope of the low-mass Class 0 protostar IRAS 19347+0727 in the Bok globule B335 observed at the best angular resolution ever achieved for this source with ALMA.
Yamamoto, Satoshi, Imai, Muneaki, López-Sepulcre, Ana, Sakai, Nami, Watanabe, Yoshimasa, Oya, Yoko   +5 more
core   +1 more source

The Outflow of the B335 Protostar. II. After the Outburst

The Astrophysical Journal
The Barnard 335 (B335) protostar has recently undergone a major, still ongoing, outburst detected in scattered light from its outflow cavity, offering a rare opportunity to study its impact on a protostellar jet.
Klaus W. Hodapp, Adwin Boogert, Doug Johnstone, Valentin J. M. Le Gouellec, Eleni Tsiakaliari, Helen J. Fraser, Laurie L. Chu, Thomas Greene, Marcia J. Rieke   +8 more
doaj   +1 more source

Formation of Methanol via Fischer‐Tropsch Catalysis by Cosmic Iron Sulphide

ChemPhysChem, Volume 25, Issue 17, September 2, 2024.
Periodic quantum mechanical simulations evidence the potentiality to synthesise methanol through a Fischer‐Tropsch mechanism in different astrophysical environments facilitated by the catalytic properties of cosmic FeS grains, which are enhanced by the presence of naturally‐occurring point surface defects.
Berta Martinez‐Bachs, Alexia Anguera‐Gonzalez, Gerard Pareras, Albert Rimola   +3 more
wiley   +1 more source

THE HDO/H ₂ O RATIO IN GAS IN THE INNER REGIONS OF A LOW-MASS PROTOSTAR

, 2010
The HDO/H2O abundance ratio is thought to be a key diagnostic for the evolution of water during the star and planet formation process and thus for its origin on Earth.
Jørgensen, Jes Kristian, Ewine F. van Dishoeck, Van Dishoeck, E., van Dishoeck, Ewine F., Jes K. Jørgensen, Jørgensen, J.   +5 more
core   +1 more source

Resolving the collimation zone of an intermediate-mass protostar [PDF]

, 2022
We report new VLA and e-MERLIN high resolution and sensitivity images of the Triple Radio continuum Source in the Serpens star forming region. These observations allowed us to perform a deep multi-frequency, multi-epoch study by exploring the innermost ...
Shang, Hsien, Eislöffel, J, Ray, Tom P., Torrelles, José M., Rodríguez-Kamenetzky, AR, Feeney-Johansson, Anton, Feeney-Johansson, A, Jorge, Luis Felipe Rodríguez, Lim, J, Rodríguez-Kamenetzky, Adriana R., Hoare, M, Lizano, S, Rodríguez, Luis F., Sanna, A, Lizano, Susana, Sanna, Antonio, Sanna, Alberto, Shang, H, Moscadelli, Luca, Ho, Paul, Moscadelli, L, Galván-Madrid('pSURNAME',8), R, Rodríguez, LF, Galván-Madrid, Roberto, Lim, JJL, Lim, Jeremy, Eislöffel, Jochen, Rodríguez-Kamenetzky, Adriana, Hoare, Melvin, Galván-Madrid, R, Carrasco-González, Carlos, Ray, TP, Carrasco-González, C, Torrelles, JM, Ho, P, Carlos Carrasco-González, Luis F. Rodríguez, Alberto Sanna, Jochen Eislöffel, Luca Moscadelli, Hsien Shang, José M. Torrelles, Jeremy Lim, Paul Ho, Adriana R. Rodríguez-Kamenetzky, Anton Feeney-Johansson, Melvin Hoare, Susana Lizano, Roberto Galván-Madrid, Tom P. Ray   +49 more
core   +1 more source

Interacting jets from binary protostars [PDF]

Astronomy & Astrophysics, 2007
We investigate potential models that could explain why multiple proto-stellar systems predominantly show single jets. During their formation, stars most frequently produce energetic outflows and jets. However, binary jets have only been observed in a very small number of systems. We model numerically 3D binary jets for various outflow parameters.
Murphy, G. C., Lery, T., O'Sullivan, S., Spicer, D., Bacciotti, F., Rosen, A.   +5 more
openaire   +4 more sources

Sulforaphane and ophthalmic diseases

Food Science &Nutrition, Volume 12, Issue 8, Page 5296-5311, August 2024.
Sulforaphane (SFN) is an organosulfur compound categorized as an isothiocyanate (ITC), primarily extracted from cruciferous vegetables like broccoli and cabbage. This review comprehensively outlines recent research on SFN, elucidates its mechanisms of action, and discusses potential therapeutic benefits for eye disorders such as age‐related macular ...
Yichi Zhang, Xiaojing Zhao, Yang Liu, Xiuxia Yang   +3 more
wiley   +1 more source

Protostar Formation in the Early Universe

, 2019
The nature of the first generation of stars in the universe remains largely unknown. Observations imply the existence of massive primordial stars early in the history of the universe, and the standard theory for the growth of cosmic structure predicts ...
Omukai, K., Hernquist, L., Yoshida, N.
core   +1 more source

Effect of Magnetic Field on the Accretion Phase of Population III Star Formation

The Astrophysical Journal
We examine the impact of the magnetic field on Population III star formation by varying its strength. We perform simulations with magnetic field strengths ranging from 10 ^−20 G to 10 ^−4 G, in addition to a model without a magnetic field.
Masahiro N. Machida, Shingo Hirano, Shantanu Basu   +2 more
doaj   +1 more source