Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Pilyugin, L."'
Autor:
Pilyugin, L. S., Tautvaisiene, G.
We examine whether there are deviations of the local central oxygen abundances in spiral galaxies from the general metallicity gradients. We compare the values of the central intersect oxygen abundances estimated from the metallicity gradient based o
Externí odkaz:
http://arxiv.org/abs/2407.00739
Autor:
Pilyugin, L. S., Tautvaisiene, G.
We considered two sequences of spiral galaxies with different shapes of the radial gas-phase oxygen abundance distributions from the galaxies in the MaNGA survey: (1) Galaxies in which the gradient is well approximated by a single linear relation acr
Externí odkaz:
http://arxiv.org/abs/2401.00458
Autor:
Garduño, L. E., Zaragoza-Cardiel, J., Lara-López, M. A., Zinchenko, I., Zerbo, M. C., De Rossi, M. E., Fritz, Jacopo, Dib, S., Pilyugin, L., Sánchez-Cruces, M., Heesen, V., O'Sullivan, S. P., López-Cruz, O., Valerdi, M., Rosado, M.
We investigate several panchromatic scaling relations (SRs) for the dwarf irregular galaxy NGC 1569 using IFU data from the Metal-THINGS Survey. Among the spatially resolved properties analyzed, we explore SRs between the stellar mass, SFR, molecular
Externí odkaz:
http://arxiv.org/abs/2309.03310
Publikováno v:
A&A 676, A57 (2023)
We search for Milky Way-like galaxies among a sample of approximately 500 galaxies. The characteristics we considered of the candidate galaxies are the following: stellar mass M_star, optical radius R_25, rotation velocity V_rot, central oxygen abund
Externí odkaz:
http://arxiv.org/abs/2306.09854
Autor:
Zinchenko, I. A., Pilyugin, L. S.
We constructed an oxygen abundance map and N/O ratio map of the unusually low excitation dwarf irregular galaxy NGC 4163 based on publicly available spectroscopy obtained by the MaNGA survey. We detected auroral emission line [OII]$\lambda\lambda$732
Externí odkaz:
http://arxiv.org/abs/2211.15710
Autor:
Lara-Lopez, M. A., Pilyugin, L. S., Zaragoza-Cardiel, J., Zinchenko, I. A., Lopez-Cruz, O., O'Sullivan, S. P., De Rossi, M. E., Dib, S., Garduno, L. E., Rosado, M., Sanchez-Cruces, M., Valerdi, M.
Publikováno v:
A&A 669, A25 (2023)
NGC~6946, also known as the `Fireworks' galaxy, is an unusual galaxy that hosts a total of 225 supernova remnant (SNR) candidates, including 147 optically identified with high [SII]/Ha line ratios. In addition, this galaxy shows prominent HI holes, w
Externí odkaz:
http://arxiv.org/abs/2210.11878
Autor:
S., Pilyugin L., A., Lara-Lopez M., M., Vilchez J., S., Duarte Puertas, A., Zinchenko I., L, Dors O.
Publikováno v:
A&A 668, A5 (2022)
In this work we make use of available Integral Field Unit (IFU) spectroscopy and slit spectra of several nearby galaxies. The pre-existing empirical R and S calibrations for abundance determinations are constructed using a sample of HII regions with
Externí odkaz:
http://arxiv.org/abs/2209.13967
Autor:
Puertas, S. Duarte, Vilchez, J. M., Iglesias-Páramo, J., Mollá, M., Pérez-Montero, E., Kehrig, C., Pilyugin, L. S., Zinchenko, I. A.
Publikováno v:
A&A 666, A186 (2022)
In this work we study the stellar mass -- metallicity relation (MZR) of an extended sample of star-forming galaxies in the local Universe and its possible dependence with the star formation rate (SFR). A sample of $\sim$195000 Sloan Digital Sky Surve
Externí odkaz:
http://arxiv.org/abs/2205.01203
Autor:
Pilyugin, L. S., Cedres, B., Zinchenko, I. A., Garcia, A. M. Perez, Lara-Lopez, M. A., Nadolny, J., Nefedyev, Y. A., Gonzalez-Otero, M., Vilchez, J. M., Puertas, S. Duarte, Martinez, R. Navarro
Off-centered spots of the enhanced gas velocity dispersion, s, are revealed in some galaxies from the MaNGA survey. Aiming to clarify the origin of the spots of enhanced s, we examine the distributions of the surface brightness, the line-of-sight vel
Externí odkaz:
http://arxiv.org/abs/2108.11264
Publikováno v:
A&A 646, A54 (2021)
The distribution of the gas velocity dispersion sigma across the images of 1146 MaNGA galaxies is analyzed. We find that there are two types of distribution of the gas velocity dispersion across the images of galaxies: (i) the distributions of 909 ga
Externí odkaz:
http://arxiv.org/abs/2012.12787