Results 71 to 80 of about 6,178,117 (397)

High-eccentricity Migration with Disk-induced Spin–Orbit Misalignment: A Preference for Perpendicular Hot Jupiters

open access: yesThe Astrophysical Journal Letters, 2023
High-eccentricity migration is a likely formation mechanism for many observed hot Jupiters, particularly those with a large misalignment between the stellar spin axis and orbital angular momentum axis of the planet.
Michelle Vick, Yubo Su, Dong Lai
doaj   +1 more source

The Resolved Stellar Populations in the LEGUS Galaxies1* [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2018
Abstract The Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming galaxies in 5 bands from the near-UV to the I-band, combining new Wide Field Camera 3 observations with archival Advanced Camera for Surveys data.
Matteo Messa   +59 more
openaire   +10 more sources

P-MaNGA: full spectral fitting and stellar population maps from prototype observations [PDF]

open access: yes, 2015
MaNGA (Mapping Nearby Galaxies at Apache Point Observatory) is a 6-yr SDSS-IV (Sloan Digital Sky Survey IV) survey that will obtain resolved spectroscopy from 3600 to 10 300 A for a representative sample of over 10 000 nearby galaxies.
D. Wilkinson   +33 more
semanticscholar   +1 more source

The stellar population of bulges [PDF]

open access: yes, 2008
To appear in the proceedings of the conference The Metal-Rich Universe, held June 12-16 on La Palma, Spain ...
openaire   +2 more sources

Stellar Populations at Large Redshifts [PDF]

open access: yesAstrophysics and Space Science, 1995
It is now possible to probe stellar populations at large lookback times. The Butcher-Oemler Effect in distant clusters is unambiguous evidence for unexpectedly recent evolution of disk galaxies in dense environments, probably through starbursts induced by interactions.
openaire   +6 more sources

The Star-Formation Histories of z~2 DOGs and SMGs

open access: yes, 2011
The Spitzer Space Telescope has identified a population of ultra-luminous infrared galaxies (ULIRGs) at z ~ 2 that may play an important role in the evolution of massive galaxies.
A. H. Gonzalez   +69 more
core   +1 more source

Stellar population gradients in galaxy discs from the CALIFA survey - The influence of bars [PDF]

open access: yes, 2014
While studies of gasphase metallicity gradients in disc galaxies are common, very little has been done towards the acquisition of stellar abundance gradients in the same regions.
P. Sánchez-Blázquez   +30 more
semanticscholar   +1 more source

Stellar Populations and the Star Formation Histories of LSB Galaxies: III. Stellar Population Models [PDF]

open access: yesPublications Astronomical Society of Australia, 2014
A series of population models are designed to explore the star formation history of gas-rich, low surface brightness (LSB) galaxies. LSB galaxies are unique in having properties of very blue colors, low Hα emission and high gas fractions that indicated a
J. Schombert, S. McGaugh
semanticscholar   +1 more source

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

open access: yesPopulation 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   +2 more
wiley   +1 more source

Hubble Space Telescope Imaging of the Ultra-Compact High Velocity Cloud AGC 226067: A stripped remnant in the Virgo Cluster

open access: yes, 2017
We analyze the optical counterpart to the ultra-compact high velocity cloud AGC 226067, utilizing imaging taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope.
Adams, E. A. K.   +12 more
core   +1 more source

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