Results 61 to 70 of about 1,290 (180)

The Formation of Stars - From Filaments to Cores to Protostars and Protoplanetary Disks

, 2019
White paper identifier ...
Di Francesco, James, Kirk, Helen, Johnstone, Doug, Pudritz, Ralph, Basu, Shantanu, Sadavoy, Sarah, Fissel, Laura, Knee, Lewis, Tahani, Merhnoosh, Friesen, Rachel, Coude, Simon, Rosolowsky, Erik, van der Marel, Nienke, Fich, Michel, Wilson, Christine, Matzner, Chris, Dong, Ruobing, Matthews, Brenda, Schieven, Gerald   +18 more
openaire   +2 more sources

Predicted colors and flux densities of protostars in theHerschelPACS and SPIRE filters [PDF]

, 2010
Upcoming surveys with the Herschel Space Observatory will yield far-IR photometry of large samples of young stellar objects, which will require careful interpretation.
Poteet, C. A., N. Calvet, Ali, B., C. A. Poteet, S. T. Megeath, E. Furlan, M. Osorio, J. J. Tobin, Hartmann, L., Osorio, M., Megeath, S. T., L. Allen, W. J. Fischer, Furlan, E., L. Hartmann, Tobin, J. J., Allen, L., B. Ali, Fischer, W. J., Calvet, N.   +19 more
core   +1 more source

Interferometric studies of low-mass protostars

, 2011
With the advances in high angular resolution (sub)millimeter observations of lowmass protostars, windows of opportunities are opening up for very detailed studies of the molecular structure of star forming regions on wide range of spatial scales.
Jørgensen, Jes K.
core   +1 more source

Surveys for OB protostars

, 2005
International audienceThe specificity of the formation of OB stars and the importance of understanding the origin of stellar masses up to the highest masses justify an effort to identify the protostellar precursors of high-mass stars.
Bontemps, Sylvain, Herpin, Fabrice, Motte, F., Schneider, N.   +3 more
core   +1 more source

A radiation driven implosion model for the enhanced luminosity of protostars near HII regions

, 2007
Context.Molecular clouds near $\ion{H}{ii}$ regions tend to harbor more luminous protostars. Aims.We investigate whether a radiation-driven implosion mechanism enhances the luminosity of protostars near regions of high ionizing fluxes.
K. Motoyama, T. Umemoto, H. Shang
core   +1 more source

Star formation across the galaxy : observations and modelling of the spectral energy distributions of young stars

, 2009
In the last few decades, the emergence of large-scale infrared surveys has led to a revolution in the study of star formation. In particular, NASA’s Spitzer Space Telescope has recently carried out mid- and far-infrared observations of numerous star ...
Robitaille, Thomas P.
core  

Rotation and internal structure of Population III protostars

, 2019
We analyse the cosmological simulations performed in the recent work of Greif et al., which followed the early growth and merger history of Population III (Pop III) stars while resolving scales as small as 0.05 R-circle dot.
Loeb, Abraham, Stacy, Athena, Bromm, Volker, Greif, Thomas H., Klessen, Ralf S.   +4 more
core   +1 more source

Revolution evolution : tracing angular momentum during star and planetary system formation

, 2015
Stars form via the gravitational collapse of molecular clouds during which time the protostellar object contracts by over seven orders of magnitude.
Davies, Claire L.
core  

Probing the physics of star formation (ProPStar) [PDF]

Astronomy & Astrophysics
Context. The detections of narrow channels of accretion toward protostellar disks, known as streamers, have increased in number in the last few years. However, it is unclear whether streamers are a common feature around protostars that were previously missed, or if they are a rare phenomenon.Aims.
María Teresa Valdivia-Mena, Jaime E. Pineda, Paola Caselli, Dominique M. Segura-Cox, Anika Schmiedeke, Silvia Spezzano, Stella Offner, Alexei V. Ivlev, Michael Kuffmeier, Nichol Cunningham, Roberto Neri, María José Maureira   +11 more
openaire   +5 more sources

Submillimetre molecular line observations and modelling of molecular clouds.

, 1985
PhDSubmillimetre molecular line observations of molecular clouds in our galaxy are presented, and the data analysed using various alternative cloud models.
Richardson, Kevin John
core