Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Coziol, R."'
Autor:
Flor-Torres, L. M., Coziol, R., Schröder, K. -P., Jack, D., Schmitt, J. H. M. M., Blanco-Cuaresma, S.
In search for a connection between the formation of stars and the formation of planets, a new semi-automatic spectral analysis method using \textsf{iSpec} was developed for the TIGRE telescope installed in Guanajuato, Mexico. TIGRE is a 1.2m robotic
Externí odkaz:
http://arxiv.org/abs/2101.11666
A sample of 46 stars, host of exoplanets, is used to search for a connection between their formation process and the formation of the planets rotating around them. Separating our sample in two, stars hosting high-mass exoplanets (HMEs) and low-mass e
Externí odkaz:
http://arxiv.org/abs/2101.11676
Autor:
Santiago-Bautista, I. del C., Rodriguez-Rico, C. A., Andernach, H., Coziol, R., Torres-Papaqui, J. P., Andrade, E. F. Jimenez, Plauchu-Frayn, I., Momjian, E.
We present results of a search for giant radio galaxies (GRGs) with a projected largest linear size in excess of 1 Mpc. We designed a computational algorithm to identify contiguous emission regions, large and elongated enough to serve as GRG candidat
Externí odkaz:
http://arxiv.org/abs/1504.07478
Using a new color-color diagnostic diagram in the mid infrared built from WISE data, the MIRDD, we compare narrow emission-line galaxies (NELGs) that exhibit different activity types (star-forming galaxies, SFGs, and AGNs, i.e.,LINERs, Sy2s and TOs),
Externí odkaz:
http://arxiv.org/abs/1504.01127
Autor:
Coziol, R., Torres-Papaqui, J. P., Plauchu-Frayn, I., Andernach, H., Neri-Larios, D. M., Ortega-Minakata, R. A., Islas-Islas, J. M.
Using data from the Wide-field Infrared Survey Explorer (WISE) we show that the mid infrared (MIR) colors of low-luminosity AGNs (LLAGNs) are significanlty different from those of post-asymptotic giant branch stars (PAGBs). This is due to a differenc
Externí odkaz:
http://arxiv.org/abs/1405.4159
Using a sample of 229618 narrow emission-line galaxies, we have determined the normal star formation histories (SFHs) for galaxies with different activity types: star forming galaxies (SFGs), transition type objects (TOs), Seyfert 2s (Sy2s) and LINER
Externí odkaz:
http://arxiv.org/abs/1308.1915
Autor:
Torres-Papaqui, J. P., Coziol, R., Andernach, H., Ortega-Minakata, R. A., Neri-Larios, D. M., Plauchu-Frayn, I.
A sample of 229618 narrow emission-line galaxies is used to establish two new unambiguous type of evidence for supermassive black holes at the center of their nuclei: 1) the Seyfert 2 galaxies and LINERs follow the same characteristic power law relat
Externí odkaz:
http://arxiv.org/abs/1208.2284
ABRIDGED: We study the Star Formation History (SFH) of 210 galaxies members of 55 Hickson Compact Groups (HCG) and 309 galaxies from the Catalog of Isolated Galaxies (CIG). The SFH traces the variation of star formation over the lifetime of a galaxy,
Externí odkaz:
http://arxiv.org/abs/1208.1756
We have determined the O/H and N/O of a sample of 122751 SFGs from the DR7 of the SDSS. For all these galaxies we have also determined their morphology and their SFH using the code STARLIGHT. The comparison of the chemical abundance with the SFH allo
Externí odkaz:
http://arxiv.org/abs/1206.0928
Autor:
Ortega-Minakata, R. A., Torres-Papaqui, J. P., Andernach, H., Coziol, R., Islas-Islas, J. M., Plauchu-Frayn, I., Neri-Larios, D. M., Rojas-Granados, M. del C.
We compare the Spectral Energy Distribution (SED) of radio-loud and radio-quiet AGNs in three different samples observed with SDSS: radio-loud AGNs (RLAGNs), Low Luminosity AGNs (LLAGNs) and AGNs in isolated galaxies (IG-AGNs). All these galaxies hav
Externí odkaz:
http://arxiv.org/abs/1201.4401