R. M. Gonzalez Delgado

Publication List Details

Period

1999 - 2008

Number

33

Co-Authors

The CaT strength in Seyfert nuclei revisited: analyzing young stars and non-stellar light contributions to the spectra (2008)

Vega, L. R., Asari, N. V., Fernandes, R. Cid, Garcia-Rissmann, A., Storchi-Bergmann, T., Delgado, R. M. Gonzalez, ...

In a former paper (Garcia-Rissmann et al. 2005; hereafter Paper I), we have presented spectra of 64 active, 9 normal and 5 Starburst galaxies in the region around the near-IR Calcium triplet...

First results from the ALHAMBRA-Survey (2008)

Fernandez-Soto, A., Aguerri, J. A. L., Alfaro, E. J., Benitez, N., Broadhurst, T., ...

We present the first results from the ALHAMBRA survey. ALHAMBRA will cover a relatively wide area (4 square degrees) using a purposely-designed set of 20 medium-band filters, down to an homogeneous...

Optical spectroscopy of Arp220: the star formation history of the closest ULIRG (2007)

Zaurin, J. Rodriguez, Tadhunter, C. N., Delgado, R. M. Gonzalez

We present optical spectra of the merging system Arp 220,taken with the William Herschel Telescope(WHT) on La Palma. These data were taken with the aim of investigating the evolution and star...

HST/WFPC2 imaging of the circumnuclear structure of LLAGNs. I Data and nuclear morphology (2007)

Delgado, R. M. Gonzalez, Perez, E., Fernandes, R. Cid, Schmitt, H.

To advance our knowledge of the nature of the central source in LLAGNs and its relation with stellar clusters, we are carrying out several imaging projects with HST at near-UV, optical and near-IR...

The dark nature of GRB 051022 and its host galaxy (2007)

Castro-Tirado, A. J., Bremer, M., McBreen, S., Gorosabel, J., Guziy, S., Delgado, R. M. Gonzalez, ...

We present multiwavelength (X-ray/optical/near-infrared/millimetre) observations of GRB 051022 between 2.5 hours and ~1.15 yr after the event. It is the most intense gamma-ray burst (~ 10^-4 erg...

The properties of the young stellar populations in powerful radio galaxies at low and intermediate redshifts (2007)

Holt, J., Tadhunter, C. N., Delgado, R. M. Gonzalez, Inskip, K. J., Rodriguez, J., Emonts, B. H. C., ...

Abridged. We present high-quality optical spectra for 12 powerful radio sources at low and intermediate redshifts (z < 0.7) that show evidence for a substantial UV excess. These data were taken using...

A census of young stellar populations in the warm ULIRG PKS1345+12 (2006)

Zaurin, J. Rodriguez, Holt, J., Tadhunter, C. N., Delgado, R. M. Gonzalez

We present a detailed investigation of the young stellar populations(YSP) in the radio-loud ultra luminous infrared galaxy (ULIRG) PKS1345+12, based on high resolution HST imaging and long slit...

The co-evolution of the obscured quasar PKS1549-79 and its host galaxy: evidence for a high accretion rate and warm outflow (2006)

Holt, J., Tadhunter, C. N., Morganti, R., Bellamy, M., Delgado, R. M. Gonzalez, Tzioumis, A., ...

ABRIDGED: We use deep optical, IR and radio observations to explore the symbiosis between the nuclear activity and galaxy evolution in the southern compact radio source PKS1549-79 (z=0.1523). The...

What is the temperature structure in the giant HII region NGC 588? (2005)

Jamet, L., Stasinska, G., Perez, E., Delgado, R. M. Gonzalez, Vilchez, J. M.

We present the results of an exhaustive study of the ionized gas in NGC 588, a giant H II region in the nearby spiral galaxy M33. This analysis uses a high number of diagnostics in the optical and...

Gas and dust properties in the afterglow spectra of GRB 050730 (2005)

Starling, R. L. C., Vreeswijk, P. M., Ellison, S. L., Rol, E., Wiersema, K., Levan, A. J., ...

We present early WHT ISIS optical spectroscopy of the afterglow of gamma-ray burst GRB 050730. The spectrum shows a DLA system with the highest measured hydrogen column to date: N(HI) = 22.1 +/- 0.1...

Near-infrared photometry of isolated spirals with and without an AGN. II: Photometric properties of the host galaxies (2005)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Delgado, R. M. Gonzalez, Marrero, I., ...

We present the analysis of morphological and photometric properties of a sample of isolated spirals with (18) and without (11) an active nucleus, based on near-infrared imaging in the J and K\'...

Near-infrared photometry of isolated spirals with and without an AGN. I: The Data (2005)

Marquez, I., Durret, F., Delgado, R. M. Gonzalez, Marrero, I., Masegosa, J., Maza, J., ...

We present infrared imaging data in the J and K\' bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chosen to satisfy well...

The detection of stellar velocity dispersion drops in the central regions of five isolated Seyfert spirals (2005)

Marquez, I., Masegosa, J., Durret, F., Delgado, R. M. Gonzalez, Moles, M., Maza, J., ...

We analyze the kinematics of the central regions of five isolated Seyfert spiral galaxies from the DEGAS sample (four with new data presented in this paper, IC184, UGC3223, NGC2639, NGC6814, and...

Long slit spectroscopy of a sample of isolated spirals with and without an AGN (2005)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Varela, J., Delgado, R. M. Gonzalez, ...

We present the kinematical data obtained for a sample of active (Seyfert) and non active isolated spiral galaxies, based on long slit spectra along several position angles in the Halpha line region...

An atlas of Calcium triplet spectra of active galaxies (2005)

Garcia-Rissmann, A., Vega, L. R., Asari, N. V., Fernandes, R. Cid, Schmitt, H., Delgado, R. M. Gonzalez, ...

We present a spectroscopic atlas of active galactic nuclei covering the region around the 8498, 8542, 8662 Calcium triplet (CaT) lines. The sample comprises 78 objects, divided into 43 Seyfert 2s, 26...

Evolutionary Stellar Population Synthesis at High Spectral Resolution: Optical Wavelengths (2005)

Delgado, R. M. Gonzalez, Cervino, Miguel, Martins, L. Pires, Leitherer, Claus, Hauschildt, Peter H.

We present the single stellar population (SSP) synthesis results of our new synthetic stellar atmosphere models library with a spectral sampling of 0.3 A, covering the wavelength range from 3000 A to...

The Stellar Populations of Low Luminosity Active Galactic Nuclei. III: Spatially Resolved Spectral Properties (2004)

Fernandes, R. Cid, Delgado, R. M. Gonzalez, Storchi-Bergmann, T., Martins, L. Pires, Schmitt, H.

In a recent survey of the stellar populations of LINERS and LINER/HII Transition Objects (TOs) we identified a numerous class of nuclei which stand out because of their conspicuous 10^8-9 yr...

Starbursts and the triggering of the activity in nearby powerful radio galaxies (2004)

Tadhunter, C., Robinson, T. G., Delgado, R. M. Gonzalez, Wills, K., Morganti, R.

We present high quality long-slit spectra for three nearby powerful radio galaxies 3C293, 3C305, PKS1345+12. These were taken with the aim of characterising the young stellar populations (YSP), and...

Long slit spectroscopy of a sample of isolated spirals with and without an AGN (2003)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Varela, J., Delgado, R. M. Gonzalez, ...

We present the kinematical data obtained for a sample of active (Seyfert) and non active isolated spiral galaxies, based on long slit spectra along several position angles in the Halpha line region...

The detection of stellar velocity dispersion drops in the central regions of five isolated Seyfert spirals (2003)

Marquez, I., Masegosa, J., Durret, F., Delgado, R. M. Gonzalez, Moles, M., Maza, J., ...

We analyze the kinematics of the central regions of five isolated Seyfert spiral galaxies from the DEGAS sample (four with new data presented in this paper, IC184, UGC3223, NGC2639, NGC6814, and...

The detection of stellar velocity dispersion drops in the central regions of five isolated Seyfert spirals (2003)

Marquez, I., Masegosa, J., Durret, F., Delgado, R. M. Gonzalez, Moles, M., Maza, J., ...

We analyze the kinematics of the central regions of five isolated Seyfert spiral galaxies from the DEGAS sample (four with new data presented in this paper, IC184, UGC3223, NGC2639, NGC6814, and...

Long slit spectroscopy of a sample of isolated spirals with and without an AGN (2003)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Varela, J., Delgado, R. M. Gonzalez, ...

We present the kinematical data obtained for a sample of active (Seyfert) and non active isolated spiral galaxies, based on long slit spectra along several position angles in the Halpha line region...

The detection of stellar velocity dispersion drops in the central regions of five isolated Seyfert spirals (2003)

Marquez, I., Masegosa, J., Durret, F., Delgado, R. M. Gonzalez, Moles, M., Maza, J., ...

We analyze the kinematics of the central regions of five isolated Seyfert spiral galaxies from the DEGAS sample (four with new data presented in this paper, IC184, UGC3223, NGC2639, NGC6814, and...

Long slit spectroscopy of a sample of isolated spirals with and without an AGN (2003)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Varela, J., Delgado, R. M. Gonzalez, ...

We present the kinematical data obtained for a sample of active (Seyfert) and non active isolated spiral galaxies, based on long slit spectra along several position angles in the Halpha line region...

Stellar population gradients in Seyfert 2 galaxies. Northern sample (2002)

Raimann, D., Storchi-Bergmann, T., Delgado, R. M. Gonzalez, Fernandes, R. Cid, Heckman, T., Leitherer, C., ...

We use high signal-to-noise ratio long-slit spectra in the 3600-4700A range of the twenty brightest northern Seyfert 2 galaxies to study the variation of the stellar population properties as a...

Circumnuclear stellar population, morphology and environment of Seyfert 2 galaxies: an evolutionary scenario (2001)

Storchi-Bergmann, T., Delgado, R. M Gonzalez, Schmitt, H. R., Fernandes, R. Cid, Heckman, T.

We investigate the relation between the characteristics of the circumnuclear stellar population and both the galaxy morphology and the presence of close companions for a sample of 35 Seyfert 2...

The Nuclear and Circum-nuclear Stellar Population in Seyfert 2 Galaxies: Implications for the Starburst-AGN Connection (2000)

Delgado, R. M. Gonzalez, Heckman, T., Leitherer, C.

We report the results of a spectroscopic investigation of a sample of 20 of the brightest type 2 Seyfert nuclei. Our goal is to search for the direct spectroscopic signature of massive stars, and...

Near-infrared photometry of isolated spirals with and without an AGN. II: Photometric properties of the host galaxies (2000)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Delgado, R. M. Gonzalez, Marrero, I., ...

We present the analysis of morphological and photometric properties of a sample of isolated spirals with (18) and without (11) an active nucleus, based on near-infrared imaging in the J and K' bands....

Near-infrared photometry of isolated spirals with and without an AGN. II: Photometric properties of the host galaxies (2000)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Delgado, R. M. Gonzalez, Marrero, I., ...

We present the analysis of morphological and photometric properties of a sample of isolated spirals with (18) and without (11) an active nucleus, based on near-infrared imaging in the J and K\'...

Near-infrared photometry of isolated spirals with and without an AGN. II: Photometric properties of the host galaxies (2000)

Marquez, I., Durret, F., Masegosa, J., Moles, M., Delgado, R. M. Gonzalez, Marrero, I., ...

We present the analysis of morphological and photometric properties of a sample of isolated spirals with (18) and without (11) an active nucleus, based on near-infrared imaging in the J and K\'...

Near-infrared photometry of isolated spirals with and without an AGN. I: The Data (1999)

Marquez, I., Durret, F., Delgado, R. M. Gonzalez, Marrero, I., Masegosa, J., Maza, J., ...

We present infrared imaging data in the J and K' bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chosen to satisfy well...

Near-infrared photometry of isolated spirals with and without an AGN. I: The Data (1999)

Marquez, I., Durret, F., Delgado, R. M. Gonzalez, Marrero, I., Masegosa, J., Maza, J., ...

We present infrared imaging data in the J and K\' bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chosen to satisfy well...

Near-infrared photometry of isolated spirals with and without an AGN. I: The Data (1999)

Marquez, I., Durret, F., Delgado, R. M. Gonzalez, Marrero, I., Masegosa, J., Maza, J., ...

We present infrared imaging data in the J and K\' bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chosen to satisfy well...