We present high resolution absorption-line spectroscopy of 3 face-on galaxies, NGC 98, NGC 600, and NGC 1703 with the aim of searching for box/peanut (B/P)...
Peculiar emission line spectra of core extremely red BOSS quasars at z̃2-3: orientation and/or evolution?
Context. Core extremely red quasars (core ERQ) have been proposed to represent an intermediate evolutionary phase in which a heavily obscured quasar blows out...
Pegasus V/Andromeda XXXIV-a newly discovered ultrafaint dwarf galaxy on the outskirts of Andromeda
We report the discovery of an ultrafaint dwarf in the constellation of Pegasus. Pegasus V (Peg V)/Andromeda XXXIV was initially identified in the public imaging...
PEP: First Herschel probe of dusty galaxy evolution up to z ~ 3
Aims: We exploit the deepest existing far-infrared (FIR) data obtained so far by Herschel at 100 and 160 μm in the GOODS-N, as part of the PACS evolutionary...
Pericentric passage-driven star formation in satellite galaxies and their hosts: CLUES from local group simulations
Local Group satellite galaxies show a wide diversity of star formation histories (SFHs) whose origin is yet to be fully understood. Using hydrodynamical...
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...
Photoionization Models of Metal-poor Extragalactic H 0 Regions and the Primordial Helium Abundance
We discuss the effects of collisional enhancement of Balmer lines on the determination of the primordial helium abundance. To this aim, we present a...
Photoionization Models of NGC 2363 and Their Implications for the Ionizing Star Cluster
Using the photoionization code CLOUDY, we compute photoionization models for the giant extragalactic H II region NGC 2363 and compare them with optical...
We 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...