Navegação Ciências Exatas e da Terra por Autor "Colina, Luis"
Resultados 1-10 de 10
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Bipolar ionization cones in the extended narrow-line region of nearby QSO2s
(2018) [Artigo de periódico]We have used narrowband [O III] λλ4959, 5007 and Hα+[N II] λλ6548, 84 Hubble Space Telescope (HST) images of nine luminous (L[O III]>1042 erg s−1) type 2 QSOs with redshifts 0.1<z<0.5 in order to constrain the geometry of ... -
Circumnuclear star formation in Mrk 42 mapped with Gemini Near-infrared Integral Field Spectrograph
(2018) [Artigo de periódico]We present Gemini Near-infrared Integral Field Spectrograph (NIFS) observations of the inner 1.5 × 1.5 kpc2 of the narrow-line Seyfert 1 galaxy Mrk 42 at a spatial resolution of 60 pc and spectral resolution of 40 kms−1. ... -
Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies : evidence for central star formation?
(2015) [Artigo de periódico]We examine the stellar velocity dispersions (σ) of a sample of 48 galaxies, 35 of which are spirals, from the Palomar nearby galaxy survey. It is known that for ultra-luminous infrared galaxies (ULIRGs) and merger remnants, ... -
First detection of the 448 GHz H2O transition in space
(2017) [Artigo de periódico]We present the first detection of the ortho-H2O 423330 transition at 448 GHz in space. We observed this transition in the local (z = 0:010) luminous infrared (IR) galaxy ESO 320-G030 (IRAS F11506-3851) using the Atacama ... -
High-velocity extended molecular outflow in the star-formation dominated luminous infrared galaxy ESO 320-G030
(2016) [Artigo de periódico]We analyze new high spatial resolution ( 60 pc) ALMA CO(21) observations of the isolated luminous infrared galaxy ESO 320- G030 (d = 48 Mpc) in combination with ancillary Hubble Space Telescope optical and near infrared ... -
K band SINFONI spectra of two z ~ 5 submillimeter galaxy systems : upper limits to the unobscured star formation from [O II] optical emission line searches
(2016) [Artigo de periódico]We present deep SINFONI K-band integral field spectra of two submillimeter galaxy systems (SMG): BR 1202-0725 and J1000+0234, at z = 4:69 and 4:55; respectively. Spectra extracted for each object in the two systems do not ... -
A SINFONI view of the nuclear activity and circumnuclear star formation in NGC 4303
(2016) [Artigo de periódico]We present new maps of emission-line flux distributions and kinematics in both ionized (traced by HI and [Fe II] lines) and molecular (H2) gas of the inner 0.7 × 0.7 kpc2 of the galaxy NGC 4303, with a spatial resolution ... -
A SINFONI view of the nuclear activity and circumnuclear star formation in NGC4303-II. Spatially resolved stellar populations
(2019) [Artigo de periódico]We present a spatially resolved stellar population study of the inner∼200 pc radius ofNGC 4303 based on near-infrared integral field spectroscopy with SINFONI/VLT at a spatial resolution of 40–80 pc and using the STARLIGHT ... -
The complex, dusty narrow-line region of NGC 4388 : gas–jet interactions, outflows and extinction revealed by near-IR spectroscopy
(2017) [Artigo de periódico]We present Gemini/GNIRS (Gemini Near-Infrared Spectrograph) spectroscopy of the Seyfert 2 galaxy NGC 4388, with simultaneous coverage from 0.85 to 2.5 μm. Several spatially extended emission lines are detected for the first ... -
Understanding the two-dimensional ionization structure in luminous infrared galaxies : a near-IR integral field spectroscopy perspective
(2015) [Artigo de periódico]We investigate the two-dimensional excitation structure of the interstellar medium (ISM) in a sample of luminous infrared galaxies (LIRGs) and Seyferts using near-IR integral field spectroscopy. This study extends to the ...
