620 citations · 4k across the 50 of their papers we have counts for
51 papers
Size measurements and characterization of the astrophysical properties of multiple-component radio-AGNs in the ROGUE I catalog
Arti Goyal, Arpita Misra, Subhrata Dey +6
We present hand-curated size measurements for a sample of 2,002 multiple-component radio AGNs in the Radio sources associated with Optical Galaxies and having Unresolved or Extende…
Implications of the continuous radio-loudness distribution among AGNs in the local Universe
A. Wójtowicz, N. Vale Asari, Ł. Stawarz +2
Aims. We investigate the radio loudness () distribution in a large, homogeneous sample of radio galaxies. Methods. The sample is composed of galaxies from the ROGUE I/…
The competing effects of recent and long-term star formation histories on oxygen, nitrogen, and stellar metallicities
Nicholas Fraser Boardman, Vivienne Wild, Natalia Vale Asari +1
The fundamental metallicity relation (FMR) - the three-way trend between galaxy stellar masses, star-formation rates (SFRs) and gaseous metallicities - remains amongst the most stu…
Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS
Grazyna Stasinska, Natalia Vale Asari, Anna Wojtowicz +1
We use the ROGUE I and II catalogues of radio sources associated with optical galaxies to revisit the characterization of radio active galactic nuclei (AGNs) in terms of radio lumi…
The infrared luminosity of retired and post-starburst galaxies: A cautionary tale for star formation rate measurements
Vivienne Wild, Natalia Vale Asari, Kate Rowlands +3
In galaxies with significant ongoing star formation there is an impressively tight correlation between total infrared luminosity (L) and H luminosity (L), when H$…
A tight N/O-potential relation in star-forming galaxies
Nicholas Fraser Boardman, Vivienne Wild, Natalia Vale Asari
We report a significantly tighter trend between gaseous N/O and (a proxy for gravitational potential) than has previously been reported between gaseous metallicity and $M…
SDSS-IV MaNGA: how do star-formation histories affect gas-phase abundances?
Nicholas Fraser Boardman, Vivienne Wild, Kate Rowlands +2
Gas-phase abundances in galaxies are the products of those galaxies' evolutionary histories. The star-formation history (SFH) of a region might therefore be expected to influence t…
The DIVING Survey -- Deep IFS View of Nuclei of Galaxies -- I. Definition and Sample Presentation
J. E. Steiner, R. B. Menezes, T. V. Ricci +7
We present the Deep Integral Field Spectrograph View of Nuclei of Galaxies (DIVING) survey, a seeing-limited optical 3D spectroscopy study of the central regions of all 170…
A Machine Learning Approach to Integral Field Unit Spectroscopy Observations: III. Disentangling Multiple Components in Hii regions
Carter Lee Rhea, Laurie Rousseau-Nepton, Simon Prunet +7
In the first two papers of this series (Rhea et al. 2020; Rhea et al. 2021), we demonstrated the dynamism of machine learning applied to optical spectral analysis by using neural n…
The role of the diffuse ionized gas in metallicity calibrations
N. Vale Asari
Estimates of gas-phase abundances based on strong-line methods have been calibrated for H~{\scshape ii} regions. Those methods ignore any contribution from the diffuse ionized gas…
A Machine Learning Approach to Integral Field Unit Spectroscopy Observations: II. HII Region LineRatios
Carter Rhea, Laurie Rousseau-Nepton, Simon Prunet +5
In the first paper of this series (Rhea et al. 2020), we demonstrated that neural networks can robustly and efficiently estimate kinematic parameters for optical emission-line spec…
Identifying radio active galactic nuclei among radio-emitting galaxies
Dorota Kozieł-Wierzbowska, Natalia Vale Asari, Grażyna Stasińska +4
Basing our analysis on ROGUE I, a catalog of over 32,000 radio sources associated with optical galaxies, we provide two diagnostics to select the galaxies where the radio emission…
Clues on the history of early-type galaxies from SDSS spectra and GALEX photometry
Ariel Werle, Roberto Cid Fernandes, Natalia Vale Asari +10
Stellar population studies of early-type galaxies (ETGs) based on their optical stellar continuum suggest that these are quiescent systems. However, emission lines and ultraviolet…
Less than the sum of its parts: the dust-corrected H luminosity of star-forming galaxies explored at different spatial resolutions with MaNGA and MUSE
N. Vale Asari, V. Wild, A. L. de Amorim +10
The H and H emission line luminosities measured in a single integrated spectrum are affected in non-trivial ways by point-to-point variations in dust attenuation in a galaxy.…
Diffuse ionized gas and its effects on nebular metallicity estimates of star-forming galaxies
N. Vale Asari, G. S. Couto, R. Cid Fernandes +5
We investigate the impact of the diffuse ionized gas (DIG) on abundance determinations in star-forming (SF) galaxies. The DIG is characterised using the H equivalent width ($W_{…
The cosmic evolution of the spatially-resolved star formation rate and stellar mass of the CALIFA survey
R. López Fernández, R. M. González Delgado, E. Pérez +8
We investigate the cosmic evolution of the absolute and specific star formation rate (SFR, sSFR) of galaxies as derived from a spatially-resolved study of the stellar populations i…
Diffuse ionized gas in galaxies across the Hubble sequence at the CALIFA resolution
E. A. D. Lacerda, R. Cid Fernandes, G. S. Couto +7
We use spatially resolved spectroscopy from the Calar Alto Legacy Field Area (CALIFA) survey to study the nature of the line emitting gas in galaxies of different Hubble types, foc…
What distinguishes the host galaxies of radio-loud and radio-quiet AGNs?
D. Kozieł-Wierzbowska, N. Vale Asari, G. Stasińska +3
We compare the optical properties of the host galaxies of radio-quiet (RQ) and radio-loud (RL) Type 2 active galactic nuclei (AGNs) to infer whether the jet production efficiency d…
The spatially resolved star formation history of CALIFA galaxies: Cosmic time scales
R. García-Benito, R. M. González Delgado, E. Pérez +7
This paper presents the mass assembly time scales of nearby galaxies observed by CALIFA at the 3.5m telescope in Calar Alto. We apply the fossil record method of the stellar popula…
The PyCASSO database: Spatially resolved stellar population properties for CALIFA galaxies
A. L. de Amorim, R. García-Benito, R. Cid Fernandes +6
The Calar Alto Legacy Integral Field Area (CALIFA) survey, a pioneer in integral field spectroscopy legacy projects, has fostered many studies exploring the information encoded on…
The spatially-resolved star formation histories of CALIFA galaxies: Implications for galaxy formation
R. M. González Delgado, E. Pérez, R. Cid Fernandes +9
This paper presents the spatially resolved star formation history (SFH) of nearby galaxies with the aim of furthering our understanding of the different processes involved in the f…
A quick start guide to BOND: Bayesian Oxygen and Nitrogen abundance Determinations in H II regions using strong and semistrong lines
N. Vale Asari, G. Stasińska, C. Morisset +1
We present a quick-start guide to BOND, a statistical method to derive oxygen and nitrogen abundances in H II regions. BOND compares a set of carefully selected strong and semistro…
The many faces of LINER-like galaxies: a WISE view
F. R. Herpich, A. Mateus, G. Stasińska +2
We use the SDSS and WISE surveys to investigate the real nature of galaxies defined as LINERs in the BPT diagram. After establishing a mid-infrared colour W2-W3 = 2.5 as the optima…
BOND: Bayesian Oxygen and Nitrogen abundance Determinations in giant H II regions using strong and semi-strong lines
N. Vale Asari, G. Stasińska, C. Morisset +1
We present BOND, a Bayesian code to simultaneously derive oxygen and nitrogen abundances in giant H II regions. It compares observed emission lines to a grid of photoionization mod…