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Related papers: Modeling ionized gas in low-metallicity environmen…

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With the goal of a thorough investigation of the ionised gas and its origin in early-type group-dominant galaxies, we present archival MUSE data for 18 galaxies from the Complete Local-Volume Groups Sample (CLoGS). This data allowed us to…

Astrophysics of Galaxies · Physics 2022-09-14 P. Lagos , S. I. Loubser , T. C. Scott , E. O'Sullivan , K. Kolokythas , A. Babul , A. Nigoche-Netro , V. Olivares , C. Sengupta

To determine the properties of the ionized gas at the edge of the CMZ near Sgr E we observed a small portion of the edge of the CMZ near Sgr E with spectrally resolved [C II] 158 micron and [N II] 205 micron fine structure lines at six…

Astrophysics of Galaxies · Physics 2015-06-23 W. D. Langer , P. F. Goldsmith , J. L. Pineda , T. Velusamy , M. A. Requena-Torres , H. Wiesemeyer

We aim to constrain the kinetic temperature and H$_2$ volume density of massive star-forming clumps associated with HII regions using multiple para-H$_2$CO transitions. In addition, we investigate the interplay between ionized gas,…

We present a set of photoionization models that reproduce simultaneously the observed optical and mid-infrared spatial distribution of the HII region NGC595 in the disk of M33 using the code CLOUDY. Both optical (PMAS-Integral Field…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Enrique Perez-Montero , Monica Relano , Jose M. Vilchez , Ana Monreal-Ibero

We present direct measures of the ionization fractions of several sulfur ions in the Galactic warm ionized medium (WIM). We obtained high resolution ultraviolet absorption line spectroscopy of post-asymptotic giant branch stars in the the…

Astrophysics of Galaxies · Physics 2015-06-11 J. Christopher Howk , S. Michelle Consiglio

We present in here the exploration of the physical properties of the sample of HII regions and aggregations of the last HII regions catalog of the CALIFA survey. This sample comprises the optical spectroscopic properties of more than…

Studying metal-poor galaxies is crucial for understanding the physical mechanisms driving the evolution of galaxies. Most observational works in dwarf galaxies employ integral field unit data to investigate gas physics in the entire galaxy…

Astrophysics of Galaxies · Physics 2025-07-16 A. Andrade , I. Saviane , L. Monaco , M. Gullieuszik

Based on our observations with the 6-m BTA telescope at the Special Astrophysical Observatory, the Russian Academy of Sciences, and archival Hubble Space Telescope images, we have performed stellar photometry for several regions of the…

Astrophysics of Galaxies · Physics 2010-02-11 N. A. Tikhonov , O. A. Galazutdinova

Galaxy metallicity scaling relations provide a powerful tool for understanding galaxy evolution, but obtaining unbiased global galaxy gas-phase oxygen abundances requires proper treatment of the various line-emitting sources within…

Astrophysics of Galaxies · Physics 2017-12-13 Ryan L. Sanders , Alice E. Shapley , Kai Zhang , Renbin Yan

We studied the environment of the dust bubble N10 in molecular emission. Infrared bubbles, first detected by the GLIMPSE survey at 8.0 $\mu$m, are ideal regions to investigate the effect of the expansion of the HII region on its…

Astrophysics of Galaxies · Physics 2016-10-18 D. R. G. Gama , J. R. D. Lepine , Y. Wu , J. Yuan , E. Mendoza

Resolution of nearby giant HII regions into their stellar and nebular constituents provides fundamental insights for interpreting more distant and powerful starburst activity. The following summarizes recent advances in our understanding of…

Astrophysics · Physics 2007-05-23 William H. Waller

We present new VLT/MUSE observations of a 3 $\times$ 8 arcmin$^2$ mosaic along the southern major axis of the Local Group galaxy M33. These data provide an unprecedented view of the galaxy's interstellar medium (ISM) and allow us to resolve…

We present molecular line observations made with the IRAM 30-m telescope of the immediate surroundings of a sample of 11 candidate high-mass protostars. These observations are part of an effort to clarify the evolutionary status of a set of…

Astrophysics · Physics 2009-11-06 J. Brand , R. Cesaroni , F. Palla , S. Molinari

We present a model for the interstellar medium of NGC4214 with the objective to probe the physical conditions in the two main star-forming regions and their connection with the star formation activity of the galaxy. We used the spectral…

Astrophysics of Galaxies · Physics 2015-08-19 A. Dimaratos , D. Cormier , F. Bigiel , S. C. Madden

Abridged. Low-metallicity star-forming dwarf galaxies are prime targets to understand the chemical enrichment of the interstellar medium. The HI region provides important constraints on the dispersal and mixing of heavy elements released by…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Vianney Lebouteiller , Sara Heap , Ivan Hubeny , Daniel Kunth

The cloud-scale density, velocity dispersion, and gravitational boundedness of the interstellar medium (ISM) vary within and among galaxies. In turbulent models, these properties play key roles in the ability of gas to form stars. New high…

We present constraints on the massive star and ionized gas properties for a sample of 62 star-forming galaxies at $z\sim2.3$. Using BPASS stellar population models, we fit the rest-UV spectra of galaxies in our sample to estimate age and…

We present IFU observations with MUSE@VLT and deep imaging with FORS@VLT of a dwarf galaxy recently formed within the giant collisional HI ring surrounding NGC 5291. This TDG-like object has the characteristics of typical z=1-2 gas-rich…

Astrophysics of Galaxies · Physics 2015-12-23 J. Fensch , P. -A. Duc , P. M. Weilbacher , M. Boquien , E. Zackrisson

Numerical simulations of minor mergers predict little enhancement in the global star formation activity. However, it is still unclear the impact they have on the chemical state of the whole galaxy and on the mass build-up in the galaxy…

Astrophysics of Galaxies · Physics 2014-06-19 D. Miralles-Caballero , A. I. Díaz , F. F. Rosales-Ortega , E. Pérez-Montero , S. F. Sánchez

We study the physical properties of the ionized gas in local disks using the sample of 38 nearby $\sim10^{8.5-11.2}$M$_\odot$ Star-Forming Main Sequence (SFMS) galaxies observed so far as part of the MUSE Atlas of Disks (MAD). Specifically,…