376 citations · 2k across the 33 of their papers we have counts for
16 papers · 1 filter
On the nature of the extragalactic number counts in the K-band
G. Barro, J. Gallego, P. G. Pérez-González +10
We investigate the causes of the different shape of the -band number counts when compared to other bands, analyzing in detail the presence of a change in the slope around $K\sim…
GALEX observations of Low Surface Brightness Galaxies: UV color and star formation efficiency
S. Boissier, A. Gil de Paz, A. Boselli +7
We present GALEX UV observations of a sample of Low Surface Brightness (LSB) galaxies for which HI data are available, allowing us to estimate their star formation efficiency. We f…
Extended UV (XUV) Emission in Nearby Galaxy Disks
A. Gil de Paz, D. A. Thilker, L. Bianchi +19
We summarize the main properties of the extended UV (XUV) emission found in roughly 30% of the nearby spiral galaxies observed by the GALEX satellite. Two different classes of XUV…
Spontaneous and Stimulated Star Formation in Galaxies
Barry F. Madore, Samuel Boissier, Armando Gil de Paz +2
We present recent results from several on-going studies: The first addresses the question of gas-density thresholds for star formation, as probed by the outer disks of normal nearb…
Resolved Stellar Populations Constituting Extended UV Disks (XUV-disks) in Nearby Galaxies
D. A. Thilker, L. Bianchi, G. Meurer +11
We describe HST imaging of recent star formation complexes located in the extended UV disk (XUV-disk) component of NGC 5236 (M 83), NGC 5055 (M 63), and NGC 2090. Photometry in fou…
Specific SFR profiles in nearby spiral galaxies: quantifying the inside-out formation of disks
J. C. Muñoz-Mateos, A. Gil de Paz, S. Boissier +4
We present specific Star Formation Rate (sSFR) radial profiles for a sample of 161 relatively face-on spiral galaxies from the GALEX Atlas of Nearby Galaxies. The sSFR profiles are…
An Ultraviolet-to-Radio Broadband Spectral Atlas of Nearby Galaxies
D. A. Dale, A. Gil de Paz, K. D. Gordon +28
The ultraviolet-to-radio continuum spectral energy distributions are presented for all 75 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS). A principal component ana…
GALEX UV Color Relations for Nearby Early-Type Galaxies
Jose Donas, Jean-Michel Deharveng, R. Michael Rich +23
We use GALEX/optical photometry to construct color-color relationships for early-type galaxies sorted by morphological type. We have matched objects in the GALEX GR1 public release…
Luminous Compact Blue Galaxies up to z~1 in the HST Ultra Deep Field: I. Small galaxies, or blue centers of massive disks?
K. G. Noeske, D. C. Koo, A. C. Phillips +4
We analyze 26 Luminous Compact Blue Galaxies (LCBGs) in the HST/ACS Ultra Deep Field (UDF) at z ~ 0.2-1.3, to determine whether these are truly small galaxies, or rather bright cen…
GALEX UV observations of the interacting galaxy NGC 4438 in the Virgo cluster
A. Boselli, S. Boissier, L. Cortese +26
We present GALEX NUV (2310 A) and FUV (1530 A) images of the interacting galaxy NGC 4438 (Arp 120) in the center of the Virgo cluster. These images show an extended (20 kpc) tidal…
GALEX observations of the UV surface brightness and color profiles of the Local Group elliptical galaxy M32 (NGC221)
A. Gil de Paz, B. F. Madore, Y. -J. Sohn +22
M32, the compact elliptical-galaxy companion to the Andromeda spiral galaxy has been imaged by the Galaxy Evolution Explorer (GALEX) in two ultraviolet bands, centered at ~1500 (FU…
Palomar/Las Campanas Imaging Atlas of Blue Compact Dwarf Galaxies: II. Surface Photometry and the Properties of the Underlying Stellar Population
A. Gil de Paz, B. F. Madore
We present the results from an analysis of surface photometry of B, R, and Halpha images of a total of 114 nearby galaxies drawn from the Palomar/Las Campanas Imaging Atlas of Blue…
Discovery of a double ring in the dwarf galaxy Mrk409
A. Gil de Paz, B. F. Madore, K. Noeske +3
We report the discovery of a double ring of emission-line regions around the nucleus of the Blue Compact Dwarf (BCD) galaxy Mrk409 as seen by deep, ground-based Halpha images. Eche…
Palomar/Las Campanas Imaging Atlas of Blue Compact Dwarf galaxies: I. Images and integrated photometry
A. Gil de Paz, B. F. Madore, O. Pevunova
We present B, R, and Halpha images for a total of 114 nearby galaxies (v_helio<4000km/s) that, with exception of 9 objects, are classified as Blue Compact Dwarfs (BCDs). BR integra…
12CO mapping of the low-metallicity BCD galaxy Mrk86
A. Gil de Paz, S. A. Silich, B. F. Madore +3
We have mapped the 12CO J=1-0 and J=2-1 line emission in Mrk86, one of the most metal-deficient Blue Compact Dwarf galaxies so far detected in 12CO. The 12CO emission is distribute…
Mapping the star formation history of Mrk86: II. Stellar populations and global interpretation
A. Gil de Paz, J. Zamorano, J. Gallego
In this paper, continuation of Gil de Paz et al. (Paper I), we derive the main properties of the stellar populations in the Blue Compact Dwarf galaxy Mrk86. Ages, stellar masses, m…