Results 51 to 60 of about 1,168,780 (297)

The stellar initial mass function of nearby young moving groups

Astronomy & Astrophysics
Context. The solar neighbourhood is populated by nearby (
Bertolotto-Stefanelli Rafael, José Downes Juan, Suárez Genaro, Mateu Cecilia, Gagné Jonathan, Román Zúñiga Carlos   +5 more
doaj   +1 more source

The shape of the initial cluster mass function: What it tells us about the local star formation efficiency [PDF]

, 2008
We explore how the expulsion of gas from star cluster forming cloud cores due to supernova explosions affects the shape of the initial cluster mass function, that is, the mass function of star clusters when effects of gas expulsion are over.
Goodwin, S.P., Kroupa, P., Baumgardt, H., Goodwin, S. P., Parmentier, G.   +4 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

The Stellar Content of NGC 3603 Revisited: Is the IMF Top Heavy?

The Astrophysical Journal
Studies of the resolved stellar populations of young massive clusters have shown that the slope of the initial mass function (IMF) appears to be the same everywhere, with no dependence on stellar density or metallicity.
Philip Massey, Nidia I. Morrell, Kathryn F. Neugent, Monica Herzog, Maria R. Drout, Caitlin O’Brien   +5 more
doaj   +1 more source

The coupled origin of the stellar initial mass function and multiplicity

Astronomy & Astrophysics
Context. In the solar neighbourhood, the initial mass function (IMF) is canonically described by the Salpeter power-law slope for the high-mass range.
Thomasson B., Joncour I., Moraux E., Motte F., Yoo T., Ginsburg A.   +5 more
doaj   +1 more source

Stellar initial mass function varies with metallicity and time

Nature, 2023
Most structural and evolutionary properties of galaxies strongly rely on the stellar initial mass function (IMF), namely the distribution of the stellar mass formed in each episode of star formation. As the IMF shapes the stellar population in all stellar systems, it turns out to become one of the most fundamental concepts of modern astronomy.
Jiadong Li, Chao Liu, Zhi-Yu Zhang, Hao Tian, Xiaoting Fu, Jiao Li, Zhi-Qiang Yan   +6 more
openaire   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

JWST’s PEARLS: Temperatures of Nine Highly Magnified Stars in a Galaxy at Redshift 0.94 and Simulated Stellar Population Dependence on Stellar Metallicity and the Initial Mass Function

The Astrophysical Journal
We present stellar atmosphere modeling of JWST NIRCam photometry of nine highly magnified individual stars in a single galaxy at redshift z = 0.94 known as the Warhol arc, which is strongly lensed by the galaxy cluster MACS J0416.
Hayley Williams, Patrick L. Kelly, Rogier A. Windhorst, Alexei V. Filippenko, Amruth Alfred, Tom Broadhurst, Wenlei Chen, Christopher J. Conselice, Seth H. Cohen, José M. Diego, Benne W. Holwerda, Anton M. Koekemoer, Sung Kei Li, Ashish Kumar Meena, José M. Palencia, Massimo Ricotti, Clayton D. Robertson, Bangzheng Sun, Haojing Yan, Adi Zitrin   +19 more
doaj   +1 more source

A Census of the TW Hya Association with Gaia

The Astronomical Journal, 2023
I have used high-precision photometry and astrometry from the third data release of Gaia to perform a survey for members of the TW Hya association (TWA).
K. L. Luhman
doaj   +1 more source

The Initial Mass Function in Starbursts [PDF]

, 2005
The history of the initial mass function (IMF) in starburst regions is reviewed. The IMFs are no longer believed to be top-heavy, although some super star clusters, whether in starburst regions or not, could be. General observations of the IMF are discussed to put the starburst results in perspective.
openaire   +1 more source