Results 31 to 40 of about 24,969 (196)

Star Formation triggered by cloud-cloud collisions [PDF]

, 2015
We present the results of SPH simulations in which two clouds, each having mass $M_{_{\rm{o}}}\!=\!500\,{\rm M}_{_\odot}$ and radius $R_{_{\rm{o}}}\!=\!2\,{\rm pc}$, collide head-on at relative velocities of $\Delta v_{_{\rm{o}}} =2.4,\;2.8,\;3.2,\;3.6\;{
Balfour, S. K., Hubber, D. A., Jaffa, S. E., Whitworth, A. P.   +3 more
core   +2 more sources

Variable Accretion Rates and Fluffy First Stars [PDF]

, 2012
We combine the output of hydrodynamical simulations of Population III star cluster formation with stellar evolution models, and calculate the evolution of protostars experiencing variable mass accretion rates due to interactions within a massive disk. We
Baraffe, Baraffe, Bate, Baumgardt, Bonnell, Bromm, Clark, Clark, Federrath, Fryer, Girichidis, Greif, Hilditch, Hosokawa, Hosokawa, Hosokawa, Hosokawa, Jappsen, Kazuyuki Omukai, Krumholz, Lajoie, Mac Low, Machida, Machida, McKee, Offner, Omukai, Omukai, Peters, Prieto, Ralf S. Klessen, Rowan J. Smith, Schmeja, Simon C. O. Glover, Smith, Stacy, Stacy, Stahler, Takashi Hosokawa, Tan, Turk, Vorobyov, Woosley, Wuchterl   +43 more
core   +1 more source

Early Planet Formation in Embedded Disks (eDisk). X. Compact Disks, Extended Infall, and a Fossil Outburst in the Class I Oph IRS43 Binary

The Astrophysical Journal, 2023
We present the first results from the Early Planet Formation in Embedded Disks Atacama Large Millimeter/submillimeter Array Large Program toward Oph IRS43, a binary system of solar mass protostars. The 1.3 mm dust continuum observations resolve a compact
Suchitra Narayanan, Jonathan P. Williams, John J. Tobin, Jes K. Jørgensen, Nagayoshi Ohashi, Zhe-Yu Daniel Lin, Merel L. R. van’t Hoff, Zhi-Yun Li, Adele L. Plunkett, Leslie W. Looney, Shigehisa Takakuwa, Hsi-Wei Yen, Yusuke Aso, Christian Flores, Jeong-Eun Lee, Shih-Ping Lai, Woojin Kwon, Itziar de Gregorio-Monsalvo, Rajeeb Sharma, Chang Won Lee   +19 more
doaj   +1 more source

Orphaned Protostars

, 2010
We explore the origin of a population of distant companions (~1000 - 5000 AU) to Class I protostellar sources recently found by Connelley and co-workers, who noted that the companion fraction diminished as the sources evolved.
Armitage, Clarke, Connelley, Connelley, Evans, Goodwin, Haisch, Herbig, Kirk, Kroupa, Köhler, Larson, McClure, Plummer, Reipurth, Reipurth, Reipurth, Reipurth, Reipurth, Reipurth, Reipurth, Riaz, Sterzik, Sterzik, Tokovinin, Umbreit, Valtonen, Valtonen, Whitworth   +28 more
core   +1 more source

An empirical model for protostellar collapse [PDF]

, 2000
We propose a new analytic model for the initial conditions of protostellar collapse in relatively isolated regions of star formation. The model is non-magnetic, and is based on a Plummer-like radial density profile as its initial condition.
Ward-Thompson, D., Whitworth, A. P.
core   +2 more sources

Observations of phosphorus-bearing molecules in the interstellar medium

Frontiers in Astronomy and Space Sciences
The chemistry of phosphorus (31P) in space is particularly significant due to the key role it plays in biochemistry on Earth. Utilising radio and infrared spectroscopic observations, several key phosphorus-containing molecules have been detected in ...
Francesco Fontani, Francesco Fontani, Francesco Fontani   +2 more
doaj   +1 more source

A Mid-Infrared Study of the Class 0 Cluster in LDN 1448 [PDF]

, 2005
We present ground-based mid-infrared observations of Class 0 protostars in LDN 1448. Of the five known protostars in this cloud, we detected two, L1448N:A and L1448C, at 12.5, 17.9, 20.8, and 24.5 microns, and a third, L1448 IRS 2, at 24.5 microns.
Bachiller R., Bachiller R., Bachiller R., Bachiller R., Bachiller R., Bontemps S., David M. Cole, Eisloffel J., Grace Wolf-Chase, Guilloteau S., Hildebrand R., JoAnn C. O'Linger, Michael E. Ressler, Neckel T., Saraceno P., Volgnau N.   +15 more
core   +2 more sources

Formation of Massive and Wide First-star Binaries in Radiation Hydrodynamic Simulations

The Astrophysical Journal, 2023
We study the formation of Population III stars by performing radiation hydrodynamic simulations for three different initial clouds extracted from cosmological hydrodynamic simulations.
Kazuyuki Sugimura, Tomoaki Matsumoto, Takashi Hosokawa, Shingo Hirano, Kazuyuki Omukai   +4 more
doaj   +1 more source

The JCMT Gould Belt Survey: A First Look at the Auriga–California Molecular Cloud with SCUBA-2 [PDF]

, 2018
We present 850 and 450 μm observations of the dense regions within the Auriga–California molecular cloud using SCUBA-2 as part of the JCMT Gould Belt Legacy Survey to identify candidate protostellar objects, measure the masses of their circumstellar ...
A. Chrysostomou, A. Duarte-Cabral, Andrews S. M., Andrews S. M., B. C. Matthews, Berry D. S., Broekhoven-Fiene H., C. D. Wilson, C. J. Davis, C. Mowat, C. Quinn, C. Salji, Chen M. C.-Y., D. Bresnahan, D. Johnstone, D. Nutter, D. Robertson, D. Rumble, D. S. Berry, D. Ward-Thompson, E. Drabek-Maunder, E. Rosolowsky, Evans N. J.II, G. A. Fuller, G. J. White, G. Joncas, G. Moriarty-Schieven, Gutermuth R. A., H. Broekhoven-Fiene, H. Butner, H. Kirk, H. Thomas, Harvey P. M., Harvey P. M., J. Buckle, J. C. Mottram, J. Di Francesco, J. E. Pineda, J. Fiege, J. Greaves, J. Gregson, J. Hatchell, J. Lane, J. M. Kirk, J. Rawlings, J. Richer, J. Wouterloot, J. Yates, K. Marsh, K. Pattle, L. B. G. Knee, Lada C. J., Lane J., M. Chen, M. Fich, M. J. Currie, M. R. Hogerheijde, M. Zhu, Mann R. K., Mann R. K., Mann R. K., Mann R. K., Markwardt C. B. ed Bohlender D. A., Megeath S. T., Mohanty S., N. Tothill, P. Bastien, P. Friberg, P. Harvey, R. Friesen, Robitaille T., S. Coude, S. Graves, S. Mairs, S. Sadavoy, S. Tisi, S. Viti, Sadavoy S. I., Sadavoy S. I., T. Jenness, W. Holland, Ward-Thompson D., Wolk S. J., Young C. H.   +83 more
core   +7 more sources

Safety of selective IL‐23p19 inhibitors for the treatment of psoriasis

Journal of the European Academy of Dermatology and Venereology, Volume 33, Issue 9, Page 1676-1684, September 2019., 2019
Abstract Psoriasis is a chronic disease that requires long‐term treatment. Consequently, understanding the safety and tolerability of any potential treatment over time is critical to effective prescribing. The biologic agents currently available for the treatment of psoriasis target a number of different inflammatory cytokines involved in psoriasis ...
J.J. Crowley, R.B. Warren, J.C. Cather
wiley   +1 more source