Alonso-Herrero, Almudena, Pereira-Santaella, Miguel, Rieke, George H., Colina, Luis, Engelbracht, Charles W., Perez-Gonzalez, Pablo, ...
Luminous Infrared (IR) Galaxies (LIRGs) are an important cosmological class of galaxies as they are the main contributors to the co-moving star formation rate density of the universe at z=1. In this...
PMAS integral field spectroscopy of luminous infrared galaxies. I.- The atlas (2009)
Alonso-Herrero, Almudena, Garcia-Marin, Macarena, Monreal-Ibero, Ana, Colina, Luis, Arribas, Santiago, Alfonso-Garzon, Julia, ...
In this paper we present PMAS optical (3800-7200A) IFS of the northern hemisphere portion of a volume-limited sample of 11 LIRGs. The PMAS observations typically cover the central ~5kpc and are...
The Extreme Star Formation Activity of Arp299 Revealed by Spitzer IRS Spectral Mapping (2009)
Alonso-Herrero, Almudena, Rieke, George H., Colina, Luis, Pereira-Santaella, Miguel, Garcia-Marin, Macarena, Smith, J. D. T., ...
We present Spitzer/IRS spectral mapping observations of the luminous infrared galaxy (LIRG) Arp299 (IC694 + NGC3690) covering the central 45arcsec ~ 9kpc. The integrated mid-IR spectrum of Arp299 is...
Spitzer/IRS Mapping of Local Luminous Infrared Galaxies (2008)
Pereira-Santaella, Miguel, Alonso-Herrero, Almudena, Rieke, George H., Colina, Luis
We present results of our program Spitzer/IRS Mapping of local Luminous Infrared Galaxies (LIRGs). The maps cover the central 20"x20" or 30"x 30" regions of the galaxies, and use all four IRS modules...
Spitzer/IRS Mapping of Local Luminous Infrared Galaxies (2008)
Pereira Santaella, Miguel, Alonso-Herrero, Almudena, Rieke, G. H., Colina, Luis
4 pages, 5 figures.-- ArXiv ref.: 0810.5088.-- To appear in "Highlights of Spanish Astrophysics V", Proceedings of the VIII Scientific Meeting of the Spanish Astronomical Society (SEA) held in...
Díaz-Santos, Tanio, Alonso-Herrero, Almudena, Colina, Luis, Packham, Christopher, Radomski, James T., Telesco, Charles M.
14 pages, 9 figures, 4 tables.-- Based on observations obtained with T-ReCS instrument at the Gemini South Observatory, which is operated by the Association of Universities for Research in Astronomy...
Typical AGN at intermediate redshifts (2008)
We study the host galaxies and black holes of typical X-ray selected AGN at intermediate redshifts (z~0.5-1.4). The AGN are selected such that their spectral energy distributions are dominated by...
X-Ray Sources in the Star Forming Galaxies NGC 4194 and NGC 7541 (2008)
Kaaret, Philip, Alonso-Herrero, Almudena
We examine the X-ray point source population and 2-10 keV luminosity for two galaxies with high star formation rates (SFRs), NGC 4194 and NGC 7541. The X-ray point source luminosity function (XLF)...
Diaz-Santos, Tanio, Alonso-Herrero, Almudena, Colina, Luis, Packham, Christopher, Radomski, James T., Telesco, Charles M.
This work explores in detail the relation between the 8 micron and the Pa-alpha emissions for 122 HII regions identified in a sample of 10 low-z LIRGs with nearly constant metallicity (12 + log (O/H)...
Scott Chapman Simon, Simon L. Morris, Almudena Alonso-herrero, Heino Falcke
We present near-IR adaptive optics, VLA radio and HST optical imaging of the nearby Seyfert galaxy NGC 2992. Spiral structure and an extension to the West are traced down to the core region at the...
Spitzer IRS mapping of the central kpc of Centaurus A (2007)
Quillen, Alice C., Bland-Hawthorn, Joss, Green, Joel, Smith, J. D., Prasad, D. Amelia, Alonso-Herrero, Almudena, ...
We report on the results of infrared spectroscopic mapping observations carried out in the nuclear region of Centaurus A (NGC5128). The 500 pc bipolar dust shell discovered by Quillen et al.(2006) is...
Arribas, Santiago, Colina, Luis, Monreal-Ibero, Ana, Alfonso, Julia, García-Marín, Macarena, Alonso-Herrero, Almudena
(Ultra)Luminous Infrared Galaxies [(U)LIRGs] are much more numerous at cosmological distances than locally, and are likely precursors of elliptical galaxies. Our goal is to carry out an integral...
Supermassive black holes in the Sbc spiral galaxies NGC 3310, NGC 4303 and NGC 4258⋆ (2007)
Pastorini, Guia, Marconi, Alessandro, Capetti, Alessandro, Axon, David, Alonso-Herrero, Almudena, Atkinson, John, ...
Also archived in: arXiv:astro-ph/0703149 v1 Mar 7 2007
Supermassive black holes in the Sbc spiral galaxies NGC 3310, NGC 4303 and NGC 4258 (2007)
Pastorini, Guia, Marconi, Alessandro, Capetti, Alessandro, Axon, David J., Alonso-Herrero, Almudena, Atkinson, John, ...
We present new Space Telescope Imaging Spectrograph (STIS) observations of three spiral galaxies, NGC 4303, NGC 3310 and NGC 4258. The bright optical emission lines H$\alpha$ $\lambda$ $6564 \AA$,...
Resolving the Stellar Populations in the Circumnuclear Ring of NGC 7469 (2007)
Diaz-Santos, Tanio, Alonso-Herrero, Almudena, Colina, Luis, Ryder, Stuart D., Knapen, Johan H.
We investigate the stellar populations in the star forming ring of the luminous infrared galaxy NGC 7469. We use Hubble Space Telescope multi-wavelength (UV through NIR) imaging complemented with new...
The mid-infrared emission of local Luminous Infrared Galaxies (2006)
In this paper we use the complementary imaging capabilities of Spitzer (sensitivity) and Gemini-South/T-ReCS (spatial resolution) to study the mid-IR properties of local (d < 75Mpc) LIRGs. The T-ReCS...
The quest for obscured AGN at cosmological distances: Infrared Power-Law Galaxies (2006)
Alonso-Herrero, Almudena, Donley, Jennifer L., Rieke, George H., Rigby, Jane R., Perez-Gonzalez, Pablo G.
We summarize multiwavelength properties of a sample of galaxies in the CDF-N and CDF-S whose Spectral Energy Distributions (SEDs) exhibit the characteristic power-law behavior expected for AGN in the...
Near-infrared and star-forming properties of local luminous infrared galaxies (2006)
Alonso-Herrero, Almudena, Rieke, George H., Rieke, Marcia J., Colina, Luis, Pérez-González, Pablo G., Ryder, Stuart D.
22 pages, 4 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/astro-ph/0606186
Integral field spectroscopy of the Luminous Infrared Galaxy Arp299 (IC694+NGC3690) (2006)
Garcia-Marin, Macarena, Colina, Luis, Arribas, Santiago, Alonso-Herrero, Almudena, Mediavilla, Evencio
The luminous infrared galaxy Arp299 (IC694+NGC3690) is studied using optical integral field spectroscopy obtained with the INTEGRAL system, together with archival Hubble Space Telescope WFPC2 and...
Hughes, MA, Axon, David, Atkinson, John, Alonso-Herrero, Almudena, Scarlata, Claudia, Marconi, Alessandro, ...
Also archived in: arXiv:astro-ph/0503693 v1 31 Mar 2005
Hughes, M., Axon, David, Atkinson, John, Alonso-Herrero, Almudena, Scarlata, Claudia, Marconi, Alessandro, ...
Also archived in: arXiv:astro-ph/0503693 v1 31 Mar 2005
Spitzer view on the evolution of star-forming galaxies from z=0 to z~3 (2005)
Perez-Gonzalez, Pablo G., Rieke, George H., Egami, Eiichi, Alonso-Herrero, Almudena, Dole, Herve, Papovich, Casey, ...
We use a 24 micron selected sample containing more than 8,000 sources to study the evolution of star-forming galaxies in the redshift range from z=0 to z~3. We obtain photometric redshifts for most...
Atkinson, John, Collett, JL, Marconi, Alessandro, Axon, David, Alonso-Herrero, Almudena, Batcheldor, Dan, ...
Also archived in: arXiv:astro-ph/0502573 v1 28 Feb 2005
Atkinson, John, Collett, J., Marconi, Alessandro, Axon, David, Alonso-Herrero, Almudena, Batcheldor, Dan, ...
Also archived in: arXiv:astro-ph/0502573 v1 28 Feb 2005
Salzer, John J., Lee, Janice C., Melbourne, Jason, Hinz, Joannah L., Alonso-Herrero, Almudena, Jangren, Anna
We explore the galaxian luminosity-metallicity (L-Z) relationship in both the optical and the near-IR using a combination of optical photometric and spectroscopic observations from the KPNO...
Le Floc'h, Emeric, Papovich, Casey, Dole, Hervé, Bell, Eric F., Lagache, Guilaine, Rieke, George H., ...
We analyze a sample of ~2600 Spitzer MIPS 24 mum sources brighter than ~80 muJy and located in the Chandra Deep Field-South to characterize the evolution of the comoving infrared (IR) energy density...
A Near-Infrared Imaging Study of Seyfert Galaxies with Extended Emission line Regions (2004)
Alonso-Herrero, Almudena, Simpson, Chris, Ward, Martin J., Wilson, Andrew S.
We present a near-infrared J,H,K and L' band (1.25 - 3.80 mue) imaging study of a sample of Seyfert galaxies, including some of the best studied examples of these with extended emission line regions...
Scarlata, Claudia, Stiavelli, Massimo, Hughes, M, Axon, David, Alonso-Herrero, Almudena, Atkinson, John, ...
Also archived in: arXiv:astro-ph/0408435 v1 24 Aug 2004
Scarlata, Claudia, Stiavelli, Massimo, Hughes, M., Axon, David, Alonso-Herrero, Almudena, Atkinson, John, ...
Also archived in: arXiv:astro-ph/0408435 v1 24 Aug 2004
Imanishi, Masatoshi, Alonso-Herrero, Almudena
We present near-infrared K-band slit spectra of the nuclei of 25 Seyfert 2 galaxies in the CfA and 12 micron samples. The strength of the CO absorption features at 2.3-2.4 micron produced by stars is...
Obscured star formation in the central region of the dwarf galaxy NGC5253 (2004)
Alonso-Herrero, Almudena, Takagi, Toshinobu, Baker, Andrew J., Rieke, George H., Rieke, Marcia J., Imanishi, Masatoshi, ...
We present HST/NICMOS observations (1.1-2.2micron) and 1.9-4.1micron spectroscopy of the central region of the dwarf galaxy NGC5253. The HST/NICMOS observations reveal the presence of a nuclear...
Obscured star formation in the central region of the dwarf galaxy NGC 5253 (2004)
Alonso-Herrero, Almudena, Takagi, Toshinobu, Baker, Andrew J., Rieke, George H., Rieke, Marcia J., Imanishi, Masatoshi, ...
A Medium-Resolution Near-Infrared Spectral Library of Late Type Stars: I (2003)
Ivanov, Valentin D., Rieke, Marcia J., Engelbracht, Charles W., Alonso-Herrero, Almudena, Rieke, George H., Luhman, Kevin L.
We present an empirical infrared spectral library of medium resolution (R~2000-3000) H (1.6 micron) and K (2.2 micron) band spectra of 218 red stars, spanning a range of [Fe/H] from ~-2.2 to ~+0.3....
Spectral Energy Distributions of Seyfert Nuclei (2003)
Alonso-Herrero, Almudena, Quillen, Alice C., Rieke, George H., Ivanov, Valentin D., Efstathiou, Andreas
We present nuclear spectral energy distributions (SEDs) in the range 0.4-16micron for an expanded CfA sample of Seyfert galaxies. The spectral indices from 1-16micron range from alpha_IR 0.9 to 3.8....
The [FeII]1.644micron emission in M82 and NGC253: Is it a measure of the supernova rate? (2002)
Alonso-Herrero, Almudena, Rieke, George H., Rieke, Marcia J., Kelly, Douglas M.
We present HST/NICMOS [FeII]1.644micron, Pa-alpha (1.87micron) and continuum images of the starburst galaxies M82 and NGC253 at an unprecedented spatial resolution. In both galaxies we detect [FeII]...
An Infrared View of Local Universe AGN (2002)
We summarize recent results on the infrared (IR) nuclear properties of Seyfert galaxies. 100% of all Seyfert 1-1.9$ and ~50% of all Seyfert 2s in the CfA and RSA samples observed with HST/NICMOS show...
Alonso-Herrero, Almudena, Rieke, George H., Rieke, Marcia J.
We have used HST/NICMOS H-band narrow-band Pa-alpha (at rest 1.87micron) images to identify star clusters and HII regions respectively in a sample of 8 luminous infrared galaxies (LIRGs). These...
Statistical properties of circumnuclear HII regions in nearby galaxies (2001)
Alonso-Herrero, Almudena, Knapen, Johan H.
We analyze the statistical properties of the circumnuclear HII regions of a sample of 52 nearby galaxies ($v < 1000km/s) from archival HST/NICMOS H-band and Pa alpha (1.87micron) observations at...
Testing the AGN-Starburst Connection in Seyfert Galaxies (2000)
Ivanov, Valentin D., Rieke, George H., Groppi, Christopher E., Alonso-Herrero, Almudena, Rieke, Marcia J., Engelbracht, C. W.
We use the CO band at 2.3 micron to constrain the populations of young stars in the central regions of Seyfert galaxies. We report new CO band spectroscopy of 46 Seyfert galaxies. In most cases, the...
Ivanov, Valentin D., Borissova, Jordanka, Alonso-Herrero, Almudena, Russeva, Tatiana
Infrared JKs-band photometry of the Galactic globular clusters M15 and, for the first time, M56 is presented. We estimated the reddening (E(B-V)=0.18+/-0.08 mag) and distance modulus...
Alonso-Herrero, Almudena, Rieke, Marcia J., Rieke, George H., Shields, Joseph C.
We present $J$-band ($1.15-1.35 \mu$m) spectroscopy of a sample of nine galaxies showing some degree of LINER activity (classical LINERs, weak-[O {\sc i}] LINERs and transition objects), together...
Chapman, Scott C., Morris, Simon L., Alonso-Herrero, Almudena, Falcke, Heino
We present near-IR adaptive optics, VLA radio and HST optical imaging of the nearby Seyfert galaxy NGC2992. Spiral structure and an extension to the West are traced down to the core region at the...
An Infrared Determination of the Reddening and Distance to Dwingeloo 1 (1999)
Ivanov, Valentin D., Alonso-Herrero, Almudena, Rieke, Marcia J., McCarthy, Don
We present for the first time infrared observations of the nearby highly obscured galaxy Dwingeloo 1 (Dw1), including deep H-band imaging covering a total of 4.9x4.9 arcmin, together with J and Ks...