Publications (17)
Modelling line ratios and continuum SED of NGC4993 and other short GRB host galaxies
Marcella Contini
We present a detailed spectral modelling of NGC4993 -- the host galaxy of GW170817 -- and other SGRB host galaxies. In order to determine their physical conditions and the element…
The complex structure of low luminosity AGN : NGC 4579
Marcella Contini
We have modelled the low luminosity AGN NGC 4579 by explaining both the continuum and the line spectra. It was found that the nuclear emission is dominated by an AGN. However, a yo…
Dust-to-gas ratios in the starburst regions of luminous infrared galaxies
Marcella Contini, Thierry Contini
We investigate the properties of dust and dust-to-gas ratios in different starburst regions of luminous infrared galaxies (LIGs). We refer to the sample of seven LIGs recently obse…
Analysis of metal-poor galaxy spectra in the redshift range 0.00574-0.05368
Marcella Contini
We present an analysis of the metal-poor galaxy spectra in the redshift range 0.00574z0.05368 which were reported by Nakajima et al (2022) in their EMPG (extreme metal…
Shock fronts in the long GRB031203 host galaxy
Marcella Contini
The detailed modelling of the spectra observed from the long GRB031203 host galaxy at different epochs during the 2003-2009 years is presented. The line profiles show FWHM of about…
Continuum spectral energy distribution of GRB, SLSN, SB and AGN host galaxies at intermediate redshifts
Marcella Contini
Continuum SED models of gamma-ray burst (GRB) and obscured GRB host galaxies at moderately high redshifts are presented and compared with those of superluminous supernovae (SLSN),…
Infrared line ratios revealing starburst conditions in galaxies
Sueli M. Viegas, Marcella Contini, Thierry Contini
The physical conditions in typical starburst galaxies are investigated through critical infrared (IR) line ratios, as previously suggested by Lutz et al. (1998, A&A, 333, L75). The…
An analysis of the emission line spectra of AG Pegasi between phases 7.34 and 9.44
Marcella Contini
The UV and optical spectra from the HST FOS and from the FAST spectrograph at the Whipple Observatory at different phases are analysed, leading to new results about the configurati…
The Narrow Line Region of Ark 564
Marcella Contini, Alberto Rodriguez-Ardila, Sueli Viegas
The continuum and emission-line spectrum of the narrow-line Seyfert 1 galaxy Ark 564 is used to investigate, for the first time, the physical conditions and structure of its narrow…
Unveiling the central parsec region of an AGN: the Circinus nucleus in the near infrared with the VLT
M. Almudena Prieto, K. Meisenheimer, Olivier Marco +12
VLT J- to M\p-band adaptive optics observations of the Circinus Galaxy on parsec scales resolve a central bright Ks-band source with a FWHM size of 1.9 0.6 pc. This source is…
Element abundances in metal poor local star-forming galaxies constrained by the weak spectral lines
Marcella Contini
We have collected from different surveys some significant spectroscopic data observed from star-forming galaxies in the local Universe. The objects showing a relatively rich spectr…
Modeling RR Tel through the Evolution of the Spectra
Marcella Contini, Liliana Formiggini
We investigate the evolution of RR Tel after the outburst by fitting the emission spectra in two epochs. The first one (1978) is characterized by large fluctuations in the light cu…
Analysis of the spectra observed from GRB061007, GRB061121, GRB080605, GRB090926B, GRB080207 and GRB070521 host galaxies. Ha and SFR trends
Marcella Contini
We calculate the physical conditions and the N/H and O/H relative abundances for a sample of long GRB (LGRB) host galaxies in the redshift range 1<z<2.1 by modelling recently obser…
The symbiotic system AG Draconis. Soft X-ray bremsstrahlung from the nebulae
Marcella Contini, Rodolfo Angeloni
The modeling of UV and optical spectra emitted from the symbiotic system AG Draconis, adopting collision of the winds, predicts soft X-ray bremsstrahlung from nebulae downstream of…
Shock-Generated Turbulence In the Innermost 50 pc of the Galaxy Center
Itzhak Goldman, Marcella Contini
The center of the Milky Way galaxy (MW) is an extreme environment which contains a massive black hole surrounded by a very dense star cluster, two other adjacent star clusters, and…
R Aquarii spectra revisited by SUMA
Marcella Contini, Liliana Formiggini
We analyse the optical spectra and the UV spectral evolution of the jets and of the HII region inside the R Aquarii binary system by the code SUMA which consistently accounts for s…
Extended narrow-line region in Seyfert galaxies
Enrico Congiu, Marcella Contini, Stefano Ciroi +7
We present our recent results about the extended narrow-line region (ENLR) of two nearby Seyfert 2 galaxies (IC 5063 and NGC 7212) obtained by modelling the observed line profiles…