Results 71 to 80 of about 5,989,239 (352)

Cloud-scale ISM Structure and Star Formation in M51 [PDF]

, 2017
We compare the structure of molecular gas at 40 pc resolution to the ability of gas to form stars across the disk of the spiral galaxy M51. We break the PAWS survey into 370 pc and 1.1 kpc resolution elements, and within each we estimate the molecular ...
A. Leroy, E. Schinnerer, A. Hughes, J. Kruijssen, S. Meidt, A. Schruba, Jiayi Sun, F. Bigiel, G. Aniano, G. Blanc, A. Bolatto, M. Chevance, D. Colombo, M. Gallagher, S. García-Burillo, C. Kramer, M. Querejeta, J. Pety, T. Thompson, A. Usero   +19 more
semanticscholar   +1 more source

The Spatial Extent and Distribution of Star Formation in 3D-HST Mergers at z~1.5 [PDF]

, 2013
We present an analysis of the spatial distribution of star formation in a sample of 60 visually identified galaxy merger candidates at z>1. Our sample, drawn from the 3D-HST survey, is flux-limited and was selected to have high star formation rates based
Brammer, Gabriel B., Cox, Thomas J., da Cunha, Elisabete, Franx, Marijn, Fumagalli, Mattia, Jonsson, Patrik, Lundgren, Britt, Maseda, Michael V., Momcheva, Ivelina, Nelson, Erica J., Rix, Hans-Walter, Schmidt, Kasper B., Schreiber, Natascha M. Förster, Skelton, Rosalind E., van der Wel, Arjen, van Dokkum, Pieter, Whitaker, Katherine E.   +16 more
core   +4 more sources

The VISTA Orion mini-survey: star formation in the Lynds 1630 North cloud [PDF]

, 2015
The Orion cloud complex presents a variety of star formation mechanisms and properties and it is still one of the most intriguing targets for star formation studies.
Alcalá, J. M., Alves, J. F., Jørgensen, J. K., Lombardi, M., Petr-Gotzens, M. G., Spezzi, L., Stanke, T.   +6 more
core   +4 more sources

Massive star and star cluster formation [PDF]

Proceedings of the International Astronomical Union, 2006
AbstractI review the status of massive star formation theories: accretion from collapsing, massive, turbulent cores; competitive accretion; and stellar collisions. I conclude the observational and theoretical evidence favors the first of these models.
openaire   +4 more sources

Physical Processes in Star Formation [PDF]

Space Science Reviews, 2020
Star formation is a complex multi-scale phenomenon that is of significant importance for astrophysics in general. Stars and star formation are key pillars in observational astronomy from local star forming regions in the Milky Way up to high-redshift galaxies.
Martin Krause, Alexei G. Kritsuk, Marco Padovani, Simon C. O. Glover, Stella S. R. Offner, J. M. Diederik Kruijssen, Philipp Girichidis, Patrick Hennebelle, Patrick Hennebelle, Ralf S. Klessen   +9 more
openaire   +7 more sources

Population and species neighbor identity impact trait–trait relationships and plant performance

Population Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx, Florian Fort, Andrea T. Kramer   +2 more
wiley   +1 more source

S0 Galaxies: Outer Gas Accretion through Tidal Interaction and Minor Merging

Galaxies, 2023
To clarify the sources of outer gas accretion onto disk galaxies, we study the vicinity of four interacting galaxy systems in the Hα emission line by using the scanning Fabry–Perot interferometer of the 6m telescope of the Special Astrophysical ...
Olga Sil’chenko, Alexei V. Moiseev, Alexandrina Smirnova, Roman Uklein   +3 more
doaj   +1 more source

The dark nemesis of galaxy formation : why hot haloes trigger black hole growth and bring star formation to an end [PDF]

, 2016
Galaxies fall into two clearly distinct types: `blue-sequence' galaxies that are rapidly forming young stars, and `red-sequence' galaxies in which star formation has almost completely ceased.
R. Bower, J. Schaye, C. Frenk, T. Theuns, M. Schaller, R. Crain, Stuart McAlpine Icc, D. University, L. Observatory, Liverpool John Moore's University   +9 more
semanticscholar   +1 more source

Quenching of Star Formation [PDF]

AIP Conference Proceedings, 2008
In the last decade we have seen an enormous increase in the size and quality of spectroscopic galaxy surveys, both at low and high redshift. New statistical techniques to analyse large portions of galaxy spectra are now finding favour over traditional index based methods. Here we will review a new robust and iterative Principal Component Analysis (PCA)
Vivienne Wild, Tamas Budavári, Jérémy Blaizot, C. Jakob Walcher, Peter H. Johansson, Gerard Lemson, Gabriella de Lucia, Stéphane Charlot, Coryn A.L. Bailer-Jones   +8 more
openaire   +3 more sources

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

Population Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji, Kazutaka M. Takeshita, Hiroshi Takahashi, Hiromasa Igota, Mayumi Ueno, Yukiko Matsuura, Takashi Ikeda, Ryo Yoshizawa, Hino Takafumi, Tsuyoshi Yoshida   +9 more
wiley   +1 more source