Publicación
PG 1553+113: Five Years of Observations with MAGIC
We present the results of five years (2005-2009) of MAGIC observations of the BL Lac object PG 1553+113 at very high energies (VHEs; E > 100 GeV). Power-law...
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PublicaciónPHANGS-HST Catalogs for ∼100,000 Star Clusters and Compact Associations in 38 Galaxies. II. Physical Properties from Decision-tree-based Spectral Energy Distribution Fitting of NUV-U-B-V-I Photometry with Categorical Priors Set by Hα Emission, Cluster MorThis paper is the second in a series presenting the catalogs and properties of the largest sample to date of ∼100,000 star clusters and compact associations, in...
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PublicaciónPhotoionization Models of Metal-poor Extragalactic H 0 Regions and the Primordial Helium AbundanceWe discuss the effects of collisional enhancement of Balmer lines on the determination of the primordial helium abundance. To this aim, we present a...
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PublicaciónPhotoionization Models of NGC 2363 and Their Implications for the Ionizing Star ClusterUsing the photoionization code CLOUDY, we compute photoionization models for the giant extragalactic H II region NGC 2363 and compare them with optical...
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PublicaciónPhotoionization Models of NGC 346We have compared direct estimates of the ionizing photon flux from the stars observed within the H II region NGC 346 in the Small Magellanic Cloud with its...
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PublicaciónPhotoionization Models of NGC 346We present spherically symmetric and plane-parallel photoionization models of NGC 346, an H II region in the Small Magellanic Cloud. The models are based on...
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PublicaciónPhotoionization of the Diffuse Interstellar Gas in Spirals by Lyman Photons Escaping from H II RegionsThe existence of an extended component of diffuse ionized gas (DIG) is a well-known property of spiral galaxies. The integrated ensuremath {{H}alpha }...
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PublicaciónPhotometric analysis of Abell 1689We carried out a photometric analysis of a sample of early-type galaxies in Abell~1689 at z = 0.183, using HST/ACS archive images in the rest-frame V band. We...
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PublicaciónPhotometric and colorimetric studies of target objects using small and medium-size telescopesWe report on follow-up studies of transient events and objects, which have been conducted in recent years using ground-based optical observations. BVRI...