Results 31 to 40 of about 233,270 (276)

The high energy X-ray probe: resolved X-ray populations in extragalactic environments

open access: yesFrontiers in Astronomy and Space Sciences, 2023
We construct simulated galaxy data sets based on the High Energy X-ray Probe (HEX-P) mission concept to demonstrate the significant advances in galaxy science that will be yielded by the HEX-P observatory.
Bret D. Lehmer   +22 more
doaj   +1 more source

Post-starburst galaxies in SDSS-IV MaNGA [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
Post-starburst galaxies, identified by their unusually strong Balmer absorption lines and weaker than average emission lines, have traditionally been selected based on their central stellar populations. Here we identify 360 galaxies with post-starburst
Yan-Mei Chen   +8 more
semanticscholar   +1 more source

Cosmic ray transport and radiative processes in nuclei of starburst galaxies [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
The high rate of star formation and supernova explosions of starburst galaxies make them interesting sources of high-energy radiation. Depending on the level of turbulence present in their interstellar medium, the bulk of cosmic rays produced inside ...
E. Peretti   +3 more
semanticscholar   +1 more source

Densitometry and Thermometry of Starburst Galaxies [PDF]

open access: yesEAS Publications Series, 2011
With a goal toward deriving the physical conditions in external galaxies, we present a survey of formaldehyde (H2CO) and ammonia (NH3) emission and absorption in a sample of starburst galaxies using the Green Bank Telescope. By extending well-established techniques used to derive the spatial density in star formation regions in our own Galaxy, we show ...
Karl M. Menten   +4 more
openaire   +5 more sources

ALMA view of the 12C/13C isotopic ratio in starburst galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2019
We derive molecular-gas-phase 12C/13C isotope ratios for the central few hundred parsecs of the three nearby starburst galaxies NGC 253, NGC 1068, and NGC 4945 making use of the λ ∼ 3 mm 12CN and 13CN N = 1–0 lines in the ALMA Band 3.
Xindi Tang   +18 more
semanticscholar   +1 more source

Evidence of AGN Activity in the Gamma-Ray Emission from Two Starburst Galaxies [PDF]

open access: yesAstrophysical Journal, 2019
Starburst galaxies are huge reservoirs of cosmic rays (CRs) and these CRs convert a significant fraction of their energy into gamma-rays by colliding with the interstellar medium (ISM).
Fang-Kun 方坤 Peng 彭   +4 more
semanticscholar   +1 more source

Kinematics, Structure, and Mass Outflow Rates of Extreme Starburst Galactic Outflows

open access: yesThe Astrophysical Journal, 2023
We present results on the properties of extreme gas outflows in massive ( M _* ∼ 10 ^11 M _⊙ ), compact, starburst (star formation rate, SFR∼ 200 M _⊙ yr ^−1 ) galaxies at z = 0.4–0.7 with very high star formation surface densities (Σ _SFR ∼ 2000 M _⊙ yr
Serena Perrotta   +12 more
doaj   +1 more source

Clocking the Evolution of Post-starburst Galaxies: Methods and First Results [PDF]

open access: yesAstrophysical Journal, 2018
Detailed modeling of the recent star formation histories (SFHs) of post-starburst (or “E+A”) galaxies is impeded by the degeneracy between the time elapsed since the starburst ended (post-burst age), the fraction of stellar mass produced in the burst ...
K. D. French   +4 more
semanticscholar   +1 more source

ALMA Millimeter/Submillimeter Sources among Spitzer SMUVS Galaxies at z > 2 in the COSMOS Field

open access: yesThe Astrophysical Journal, 2023
Submillimeter observations reveal the star formation activity obscured by dust in the young Universe. It still remains unclear how galaxies detected at submillimeter wavelengths are related to ultraviolet/optical-selected galaxies in terms of their ...
Tomoko L. Suzuki   +2 more
doaj   +1 more source

РЕНТГЕНОВСКОЕ ИЗЛУЧЕНИЕ ГАЛАКТИК БЕЗ АКТИВНЫХ ЯДЕР

open access: yesOdessa Astronomical Publications, 2011
We perfirmed cross-correlation of SDSS galaxies and X-ray sources from 2XMMi catalogue. We selected galaxies with strong NII[6583] and OIII[5007] lines to divide them to starburst galaxies and AGNs.
A. B. Тугай   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy