Results 111 to 120 of about 1,144,964 (311)

Magnetic Field Alignment Relative to Multiple Tracers in the High-mass Star-forming Region RCW 36

open access: yesThe Astrophysical Journal
We use polarization data from SOFIA HAWC+ to investigate the interplay between magnetic fields and stellar feedback in altering gas dynamics within the high-mass star-forming region RCW 36, located in Vela C.
Akanksha Bij   +11 more
doaj   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

The chemical composition of the galactic H II regions M8 and M17. A revision based on deep VLT echelle spectrophotometry5 [PDF]

open access: yes, 2007
We present new echelle spectrophotometry of the Galactic H II regions M8 and M17. The data have been taken with the VLT UVES echelle spectrograph in the 3100 to 10400 Å range.
Monica Rodriguez
core  

The cometary HII regions of DR 21 : bow shocks or champagne flows or both?

open access: yes, 2014
C.J.C. is supported by an NSF Astronomy and Astrophysics Postdoctoral Fellowship under award AST-1003134.We present deep Very Large Array H66α radio recombination line (RRL) observations of the two cometary H II regions in DR 21.
Reid, M. J.   +7 more
core   +1 more source

Detection of Diffuse Hot Gas around the Young, Potential Superstar Cluster H72.97–69.39

open access: yesThe Astrophysical Journal
We present the first Chandra X-ray observations of H72.97–69.39, a highly embedded, potential superstar cluster in its infancy located in the star-forming complex N79 of the Large Magellanic Cloud. We detect particularly hard, diffuse X-ray emission that
Trinity L. Webb   +8 more
doaj   +1 more source

Properties of H II region populations in galaxies. I - The first-ranked H II regions

open access: yesThe Astrophysical Journal, 1988
H-alpha photometry of the brightest H II regions in 95 nearby spiral and irregular galaxies has been analyzed in order to study the dependence of the H II region populations on the properties of their parent galaxies. It is found that the brightest H II regions in Magellanic irregular galaxies are about 50 times brighter than those in early-type ...
openaire   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

An atlas of H II regions in nearby Seyfert galaxies

open access: yes, 1996
Continuum-subtracted Hα images of 17 nearby Seyfert galaxies are presented. The images are calibrated astrometrically usmg the Hubble Space Telescope Guide Star Catalog reference frame.
Storchi-Bergmann, Thaisa   +5 more
core  

Stellar Populations and the Star Formation Histories of Low Surface Brightness Galaxies. II. H II regions

open access: yes, 2013
The luminosities, colors, and Ha emission for 429 H II regions in 54 low surface brightness (LSB) galaxies are presented. While the number of H II regions per galaxy is lower in LSB galaxies compared to star-forming irregulars and spirals, there is no ...
McGaugh, Stacy S.
core   +1 more source

ALMA-QUARKS: Few-thousand-year “Hatching out of the Egg:” The Supersonic Breakout of a Hypercompact H II Region from Its Parental Hot Core

open access: yesThe Astrophysical Journal
The kinematic evolution of hypercompact (HC) H ii regions around young high-mass stars remains poorly understood due to complex interactions with parental environs.
Siju Zhang   +21 more
doaj   +1 more source

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