Results 131 to 140 of about 705,440 (315)

Dense Cores in IRDC G14.225-0.506 Revealed by ALMA Observations

open access: yesThe Astrophysical Journal
Dense cores in massive, parsec-scale molecular clumps are sites that harbor protocluster formation. We present results from observations toward a hub–filament structure of a massive infrared (IR) dark cloud G14.225-0.506 using the Atacama Large ...
Yanhanle Zhao   +4 more
doaj   +1 more source

An Ultraviolet Study of Star-Forming Regions in M31

open access: yes, 2009
We present a comprehensive study of star-forming (SF) regions in the nearest large spiral galaxy M31. We use GALEX far-UV (1344-1786 \AA, FUV) and near-UV (1771-2831 \AA, NUV) imaging to detect young massive stars and trace the recent star formation ...
Aller   +27 more
core   +2 more sources

Carbon gas in SMC low-metallicity star-forming regions [PDF]

open access: yes, 2016
This paper presents [ CII ], [ CI ] and CO emission line maps of the star-forming regions N 66, N 25+N 26, and N 88 in the metal-poor Local Group dwarf galaxy SMC.
M. Requena-Torres   +8 more
semanticscholar   +1 more source

Protein kinase FAM20C—when subcellular localization matters

open access: yesFEBS Letters, EarlyView.
FAM20C is a Golgi‐resident kinase that phosphorylates proteins along the entire secretory pathway. The presence of potential FAM20C substrates in the cytoplasm or nucleus raises the question of how the kinase and its substrates encounter each other. Protein kinases achieve signaling specificity through consensus sequence recognition and subcellular ...
Francesca Noventa, Mauro Salvi
wiley   +1 more source

JWST-FEAST: Feedback in Emerging extrAgalactic Star clusTers: Calibration of Star Formation Rates in the Mid-infrared with NGC 628

open access: yesThe Astrophysical Journal
New JWST near-infrared imaging of the nearby galaxy NGC 628 from the JWST Cycle 1 program Feedback in Emerging extrAgalactic Star clusTers (JWST-FEAST) is combined with archival JWST mid-infrared imaging to calibrate the 21 μ m emission as a star ...
Daniela Calzetti   +21 more
doaj   +1 more source

The Dependence of Star Formation Efficiency on Gas Surface Density

open access: yes, 2013
Studies by Lada (2010) and Heiderman (2010) have suggested that star formation mostly occurs above a threshold in gas surface density Sigma of Sigma_c = 120 Msun pc^{-2} (A_K = 0.8). Heiderman infer a threshold by combining low-mass star-forming regions,
Burkert, Andreas, Hartmann, Lee
core   +1 more source

Infall motions in massive star-forming regions: results from years 1 and 2 of the MALT90 survey [PDF]

open access: yes, 2015
Massive star-forming regions with observed infall motions are good sites for studying the birth of massive stars. In this paper, 405 compact sources have been extracted from the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) compact sources ...
Yuxin He   +8 more
semanticscholar   +1 more source

Star Forming Regions in Cepheus

open access: yes, 2008
104 pages, 25 tables, 35 figures; A chapter in the "Handbook of Star Forming Regions, Vol 1: The Northern Sky," ed. Bo Reipurth; ASP Monograph Series. Full resolution version can be found at http://www.konkoly.hu/staff/kun/handbook_chapters/
Kun, M., Kiss, Z. T., Balog, Z.
openaire   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

A Comparative Study of Knots of Star Formation in Interacting vs. Spiral Galaxies

open access: yes, 2016
Interacting galaxies are known to have higher global rates of star formation on average than normal galaxies, relative to their stellar masses. Using UV and IR photometry combined with new and published H-alpha images, we have compared the star formation
Jones, Keith   +4 more
core   +1 more source

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