Zobrazeno 1 - 10
of 375
pro vyhledávání: '"Peimbert M"'
Autor:
Méndez-Delgado, J. E., Esteban, C., García-Rojas, J., Arellano-Córdova, K. Z., Kreckel, K., Gómez-Llanos, V., Egorov, O. V., Peimbert, M., Orte-García, M.
We present a first study based on the analysis of the DEep Spectra of Ionized REgions Database (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of HII regions and other photoionized nebulae, mostly observed with 8-10
Externí odkaz:
http://arxiv.org/abs/2305.13136
We study in depth the abundance discrepancy problem in H II regions, this time from a different perspective than the usual one: by studying the effect of the upper mass limit (M$_{\rm up}$) of the initial mass function (IMF) on the O, C, and He predi
Externí odkaz:
http://arxiv.org/abs/2006.07335
We present two chemical evolution models of our galaxy, both models are built to fit the O/H ratios derived from H II regions, using two different methods. One model is based on abundances obtained from the [O III] 4363/5007 temperatures (direct meth
Externí odkaz:
http://arxiv.org/abs/1906.07804
HST images, MUSE maps of emission-lines, and an atlas of high velocity resolution emission-line spectra have been used to establish for the firrst time correlations of the electron temperature, electron density, radial velocity, turbulence, and orien
Externí odkaz:
http://arxiv.org/abs/1610.06595
Photoionization produces supra-thermal electrons, electrons with much more energy than is found in a thermalized gas at electron temperatures characteristic of nebulae. The presence of these high energy electrons may solve the long-standing t^2/ADF p
Externí odkaz:
http://arxiv.org/abs/1605.03634
We present deep spectrophotometry of several Hii regions in the nearby low-mass spiral galaxies NGC 300 and M33. The data have been taken with UVES and OSIRIS spectrographs attached to the 8m VLT and 10.4m GTC telescopes, respectively. We have derive
Externí odkaz:
http://arxiv.org/abs/1602.05587
Autor:
O'Dell, C. R., Ferland, G. J., Henney, W. J., Peimbert, M., Garcia-Diaz, Ma. T., Rubin, Robert H.
Recent Hubble Space Telescope images have allowed the determination with unprecedented accuracy of motions and changes of shocks within the inner Orion Nebula. These originate from collimated outflows from very young stars, some within the ionized po
Externí odkaz:
http://arxiv.org/abs/1508.03412
Autor:
Esteban, C., García-Rojas, J., Carigi, L., Peimbert, M., Bresolin, F., López-Sánchez, A. R., Mesa-Delgado, A.
We present deep echelle spectrophotometry of the brightest emission-line knots of the star-forming galaxies He 2-10, Mkn 1271, NGC 3125, NGC 5408, POX 4, SDSS J1253-0312, Tol 1457-262, Tol 1924-416 and the HII region Hubble V in the Local Group dwarf
Externí odkaz:
http://arxiv.org/abs/1406.3986
We present a chemical evolution model for M31 based on a pronounced inside-out formation scenario. The model reproduces the three main observational constraints of the M31 disk: the radial distributions of the total baryonic mass, the gas mass, and t
Externí odkaz:
http://arxiv.org/abs/1310.1420
We have been able to compare with astrometric precision AstroDrizzle processed images of NGC 6720 (the Ring Nebula) made using two cameras on the Hubble Space Telescope. The time difference of the observations was 12.925 yrs. This large time-base all
Externí odkaz:
http://arxiv.org/abs/1304.5233