Zobrazeno 1 - 10
of 25
pro vyhledávání: '"A. M. Hidalgo-Gámez"'
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 76 (2023)
We spectroscopically analyzed a sample of 85 Sloan Digital Sky Survey compact, oxygen-dominated galaxies located at redshift z ∼ 0.001–0.350, selected because of their large equivalent width of [O iii ] λ 5007 (larger than 200 Å). These galaxie
Externí odkaz:
https://doaj.org/article/5ba8deb8177d438c9f6e352ccd4c4f0f
The Star Formation Rate (SFR) was determined from a sample of 36 late-type galaxies (14 dS and 22 Sm), from the H(alpha) and Far Ultraviolet (FUV) flux. We found that the SFR(FUV) was in most cases higher than the SFR(H(alpha)).We also obtained that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a024e5d447dc71b115d225183be9bf0f
http://arxiv.org/abs/1911.05174
http://arxiv.org/abs/1911.05174
We study gap formation in gaseous protoplanetary discs by a Jupiter mass planet. The planet's orbit is circular and inclined relative to the midplane of the disc. We use the impulse approximation to estimate the gravitational tidal torque between the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebfa4bc3c444ec0dfa3e597a90f2ef2c
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 442:2282-2295
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e0ebbff4ccbcc664ef6cd62930139f9
https://doi.org/10.1093/mnras/stu722
https://doi.org/10.1093/mnras/stu722
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 442:239-250
The neutrino signal from SN1987A confirmed the core-collapse scenario and the possible formation of a neutron star. Although this compact object has eluded all observations, theoretical and numerical developments have allowed a glimpse of the fate of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d1d3ed0542a5121b37834577c1bfc3f
https://doi.org/10.1093/mnras/stu872
https://doi.org/10.1093/mnras/stu872
Autor:
A. Nigoche-Netro, A. Ruelas-Mayorga, Gerardo Ramos-Larios, S. N. Kemp, L. J. Corral, P. Lagos, S. G. Navarro, A. M. Hidalgo-Gámez, E. De la Fuente
We study the behaviour of the dynamical and stellar mass inside the effective radius (re) of early-type galaxies (ETGs). We use several samples of ETGs -ranging from 19 000 to 98 000 objects- from the ninth data release of the Sloan Digital Sky Surve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fa05ea1dc3cd05ae66b75a200c226cd
http://arxiv.org/abs/1607.05324
http://arxiv.org/abs/1607.05324
Publikováno v:
Astronomy & Astrophysics. 399:63-76
The nature of a possible correlation between metallicity and luminosity for dwarf irregular galaxies, including those with the highest luminosities, has been explored using simple chemical evolutionary models. Our models depend on a set of free param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df8e1bb2461f3531391956699c59abae
https://doi.org/10.1051/0004-6361:20021748
https://doi.org/10.1051/0004-6361:20021748
Autor:
A. M. Hidalgo-Gámez, K. Olofsson
Publikováno v:
Astronomy & Astrophysics. 389:836-844
We present abundances of neon, nitrogen and oxygen of some nearby dwarf irregular galaxies. The elemental abundances are retrieved from long-slit spectroscopy of H ii regions in the objects. The abundances are found to be sub-solar in all cases. For
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc29cbe3e2e939d9b5cf600a06d2a8bd
https://doi.org/10.1051/0004-6361:20020661
https://doi.org/10.1051/0004-6361:20020661
Publikováno v:
Scopus-Elsevier
Optical spectra of H ii regions of two dwarf irregular galaxies are presented. The objects are IC 4662 and ESO 245-G05. Chemical abundances were derived in all the H ii regions where the forbidden oxygen line (OIII)4363 A was detected. For spectra wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b4dc274565eb160e40037ef8daba7cf
https://doi.org/10.1051/0004-6361:20010179
https://doi.org/10.1051/0004-6361:20010179
We have carried out a search for gas-rich dwarf galaxies that have lower rotation velocities in their outskirts than MOdified Newtonian Dynamics (MOND) predicts, so that the amplitude of their rotation curves cannot be fitted by arbitrarily increasin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8c570224ff43c8ee38ca76a3a8617de