Results 41 to 50 of about 3,519 (205)

A molecular line survey of the candidate massive Class 0 protostar IRAS 23385+6053

, 2003
We have carried out a molecular line survey of the candidate massive protostar IRAS 23385 ...
G. H. Macdonald, M. A. Thompson
core   +1 more source

Modeling the origin of the rotation of massive stars

Astronomy & Astrophysics
Context. We explore the origins behind the rotation rates of massive stars, accounting for the fact that in contrast to their low-mass siblings, most massive stars do not have detectable magnetic fields.
Oliva André, Moyano Facundo D., Sciarini Luca, Ekström Sylvia, Eggenberger Patrick, Meynet Georges   +5 more
doaj   +1 more source

Accretion onto a primordial protostar [PDF]

New Astronomy, 2004
New Astronomy, in press, June 2004, vol.9, pp.353 ...
Bromm, Volker, Loeb, Abraham
openaire   +2 more sources

The accretion process on protostars

Frontiers in Astronomy and Space Sciences
The process of mass accretion onto Young Stellar Objects (YSOs) plays a fundamental role in determining the final stellar mass and setting the initial conditions for planet formation. Despite its critical role, our understanding of accretion remains fragmented, particularly for what concerns the earliest, protostellar phases (Class 0/I).
Fiorellino, Eleonora, Somigliana, Alice
openaire   +2 more sources

PROTOSTARS AT LOW EXTINCTION IN ORION A [PDF]

The Astrophysical Journal, 2016
ABSTRACT In the list of young stellar objects (YSOs) compiled by Megeath et al. for the Orion A molecular cloud, only 44 out of 1208 sources found projected onto low extinction ( mag) gas are identified as protostars.
John Arban Lewis, Charles J. Lada
openaire   +2 more sources

Asian Pacific Association of Gastroenterology (APAGE) Clinical Practice Guidelines on the Use of Small Molecules and IL‐23 p19 Inhibitors in Ulcerative Colitis and Crohn's Disease

Journal of Gastroenterology and Hepatology, Volume 41, Issue 7, Page 2006-2029, July 2026.
ABSTRACT Ulcerative colitis (UC) and Crohn's disease (CD) are increasingly prevalent in the Asia Pacific region, necessitating updated, region‐specific guidance on advanced therapies. Targeted small molecule agents, such as filgotinib, tofacitinib, upadacitinib, etrasimod, and ozanimod; and the IL‐23 p19 inhibitors (guselkumab, mirikizumab ...
Choon Jin Ooi, Khoon Lin Ling, Julajak Limsrivilai, Shu‐Chen Wei, Joyce Wing Yan Mak, Taku Kobayashi, Luan Minh Dang, Rupert W. Leong, Huiyu Lin, Meng‐Tzu Weng, Wan Chee Ong, Vineet Ahuja, Satimai Aniwan, Ryota Hokari, Wei Jie Jonathan Lee, Alex Hwong‐Ruey Leow, Wai‐Keung Leung, Wee‐Chian Lim, Govind Makharia, Katsuyoshi Matsuoka, Nazri Mustaffa, Siew‐Chien Ng, Mathew Philip, Pises Pisespongsa, Raja Affendi Raja Ali, Zhi Hua Ran, Marcellus Simadibrata, Jose Sollano, Malcolm Tan, Hang Dao Viet, Nik Razima Wan Ibrahim, Kai Chun Wu, Byong Duk Ye, Ida Hilmi, Asian Pacific Association of Gastroenterology (APAGE) Inflammatory Bowel Disease Committee and Asian Education Network in IBD (AEN‐IBD)   +34 more
wiley   +1 more source

An unbiased spectral survey of the solar-type protostar IRAS 16293-2422 [Poster]

Preliminary results of an unbiased millimeter and sub-millimeter spectral line survey performed with the IRAM-30m and JCMT radiotelescopes toward the low mass protostar IRAS 16293—2422 are ...
Castets, A., Kahane, C., Parise, Berengere, Van Dishoeck, E., Bacmann, A., Walters, A., Tielens, A. G. G. M., Comito, C., Schilke, P., Wakelam, V., Helmich, F., Ceccarelli, C., Cazaux, S., Caux, E.   +13 more
core   +5 more sources

Subarcsecond Analysis of the Infalling-Rotating Envelope around the Class I Protostar IRAS 04365+2535

, 2016
International audienceSubarcsecond 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.
Lefloch, Bertrand, Kahane, Claudine, Yamamoto, Satoshi, López-Sepulcre, Ana, Oya, Yoko, Vastel, Charlotte, Sakai, Takeshi, Sakai, Nami, Caux, Emmanuel, Watanabe, Yoshimasa, Aikawa, Yuri, Ceccarelli, Cecilia, Hirota, Tomoya   +12 more
core   +1 more source

Witnessing the birth of a supermassive protostar [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
The detection of $\rm z>6$ quasars reveals the existence of supermassive black holes of a few $\rm 10^9~M_{\odot}$. One of the potential pathways to explain their formation in the infant universe is the so-called direct collapse model which provides massive seeds of $\rm 10^5-10^6~M_{\odot}$.
Latif, M. ~A., Schleicher, Dominik Reinhold Georg, Hartwig, T.   +2 more
openaire   +4 more sources

Small‐scale elemental abundance variations in Ryugu particles from touchdown 1

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 580-599, April 2026.
Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García, Tetsuya Yokoyama, Ikshu Gautam, Makiko K. Haba, Tsuyoshi Iizuka, Nao Nakanishi, Ryota Fukai   +6 more
wiley   +1 more source