Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Pilyugin, Leonid S"'
Autor:
Lara-López, Maritza A., Zinchenko, Igor A., Pilyugin, Leonid S., Gunawardhana, Madusha L. P., López-Cruz, Omar, O'Sullivan, Shane P., Feltre, Anna, Rosado, Margarita, Sánchez-Cruces, Mónica, Chevallard, Jacopo, De Rossi, Maria Emilia, Dib, Sami, Fritz, Jacopo, Fuentes-Carrera, Isaura, Garduño, Luis E., Ibar, Eduardo
We present an analysis of the optical properties of three Ultra Luminous X-ray (ULX) sources identified in NGC 925. We use Integral field unit data from the George Mitchel spectrograph in the context of the Metal-THINGS survey. The optical properties
Externí odkaz:
http://arxiv.org/abs/2011.04302
Autor:
Lara-Lopez, Maritza A., De Rossi, Maria Emilia, Pilyugin, Leonid S., Gallazzi, Anna, Hughes, Thomas M., Zinchenko, Igor A.
We study the interplay between several properties determined from Optical and a combination of Optical/Radio measurements, such as the effective Oxygen yield (y_eff), the star formation efficiency, gas metallicity, depletion time, gas fraction, and b
Externí odkaz:
http://arxiv.org/abs/1909.01133
We investigate the influence of stellar migration caused by minor mergers (mass ratio from 1:70 to 1:8) on the radial distribution of chemical abundances in the disks of Milky Way-like galaxies during the last four Gyr. A GPU-based pure N-body tree-c
Externí odkaz:
http://arxiv.org/abs/1504.07483
We suggest a new way of the determining abundances and electron temperatures in HII regions from strong emission lines. Our approach is based on the standard assumption that HII regions with similar intensities of strong emission lines have similar p
Externí odkaz:
http://arxiv.org/abs/1205.5716
Autor:
Gusev, Alexander S., Pilyugin, Leonid S., Sakhibov, Firouz, Dodonov, Sergey N., Ezhkova, Olga V., Khramtsova, Maria S.
Spectroscopic observations of 63 HII regions in six spiral galaxies (NGC 628, NGC 783, NGC 2336, NGC 6217, NGC 7331, and NGC 7678) were carried out with the 6-meter telescope (BTA) of Russian Special Astrophysical Observatory with the Spectral Camera
Externí odkaz:
http://arxiv.org/abs/1205.3910
We present a re-analysis of spectroscopic data for 23 HII-regions in 12 blue, metal-poor low surface brightness galaxies (LSBGs) taking advantage of recent developments in calibrating strong-line methods. In doing so we have identified a galaxy (ESO
Externí odkaz:
http://arxiv.org/abs/1105.3650
Autor:
Pilyugin, Leonid S., Thuan, Trinh X.
The oxygen and nitrogen abundance evolutions with redshift of emission-line galaxies in the Sloan Digital Sky Survey are considered for four intervals of galaxy stellar masses, ranging from 10^11.3 M_sun to 10^10.2 M_sun. We have measured their line
Externí odkaz:
http://arxiv.org/abs/1012.1148
Autor:
Trevisan, Marina, Mamon, Gary A., Thuan, Trinh Xuan, Ferrari, Fabricio, Pilyugin, Leonid S., Ranjan, A.
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
In the local Universe, there are a handful of dwarf compact star-forming galaxies with extremely low oxygen abundances. It has been proposed that they are young, having formed a large fraction of their stellar mass during their last few hundred Myr.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::562008c8c0894cd57a568d5def9efc6c
Akademický článek
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Autor:
Lara-López, Maritza A, De Rossi, Maria Emilia, Pilyugin, Leonid S, Gallazzi, Anna, Hughes, Thomas M, Zinchenko, Igor A
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Nov2019, Vol. 490 Issue 1, p868-888, 21p