Publications (47)
Internal and external shock fronts in He2-104
M. Contini, L. Formiggini
The spectra of both the inner and outer nebulae in He2-104 are modelled by composite models which accounts consistently for photoionisation and shocks. The temperature of the hot s…
Metallicities in long GRB host galaxies at z0.5 calculated by the detailed modelling of optical and infrared line ratios
M. Contini
We revisited the line spectra emitted from long GRB (LGRB) host galaxies at z<0.5 in order to calculate by the detailed modelling of the line ratios the physical conditions and rel…
AGN and starburst coexistence in the short GRB100628A host galaxy
M. Contini
We have modelled the line ratios and the continuum spectral energy distribution (SED) of the short gamma-ray burst GRB100628A host galaxy complex. The results suggest that an activ…
The interpretation of the emission spectra of the Seyfert 2 galaxy NGC 7130. Determination of the AGN and starburst contributions
M. Contini, M. Radovich, P. Rafanelli +1
Detailed modeling of the different regions of NGC 7130 is presented, accounting for its composite nature of AGN and starburst galaxy. Shock waves, created by stellar winds from hot…
N/O abundance ratios in gamma-ray burst and supernova host galaxies at z<4. Comparison with AGN, starburst and HII regions
M. Contini
The distribution of N/O abundance ratios calculated by the detailed modelling of different galaxy spectra at z<4 is investigated. Supernova (SN) and long gamma-ray-burst (LGRB) hos…
The signature of high velocity gas in the spectra of NGC 4151
M. Contini, S. M. Viegas, M. A. Prieto
The multiwavelength emission spectrum and associated velocity field of the Seyfert prototype NGC 4151 is modeled. HST data has impressively revealed the existence of a large range…
The symbiotic star CH Cygni. I. An analysis of the shocked nebulae at different epochs
M. Contini, R. Angeloni, P. Rafanelli
Context. We analyse the line and continuum spectra of the symbiotic system CH Cygni. Aims. To show that the colliding-wind model is valid to explain this symbiotic star at differen…
Shock fronts in the symbiotic system BI Crucis
M. Contini, R. Angeloni, P. Rafanelli
We investigate the symbiotic star BI Crucis through a comprehensive and self-consistent analysis of the spectra emitted in three different epochs: 60's, 70's, and late 80's. In par…
The Lexington Benchmarks for Numerical Simulations of Nebulae
G. Ferland, L. Binette, M. Contini +9
We present the results of a meeting on numerical simulations of ionized nebulae held at the University of Kentucky in conjunction with the celebration of the 70th birthdays of Prof…
The symbiotic star H1-36. A composite model of line and continuum spectra from radio to ultraviolet
R. Angeloni, M. Contini, S. Ciroi +1
In this paper we analyse the spectra of D-type SS H1-36 within a colliding-wind scenario. We aim to analyse the properties of this object taking into account the observational data…
Metallicity in the merger Seyfert galaxy NGC 6240
M. Contini
We have calculated the physical conditions throughout the NLR of the merger Seyfert galaxy NGC 6240 by modelling the observed optical and infrared line ratios. We have found that t…
A Multi-Cloud Warm-Absorber Model for NGC 4051
M. Contini, S. M. Viegas
A multi-cloud model is presented which explains the soft X-ray excess in NGC 4051 and, consistently, the optical line spectrum and the SED of the continuum. The clouds are heated a…
Evidences of merging in the Seyfert galaxy NGC 3393 revealed by modelling the spectra
M. Contini
The discovery of two active black holes in the Seyfert galaxy NGC 3393, separated by about 490 light years, revealed a merging event. This led us to look for other evidences of gal…
The merger Seyfert galaxy Arp 220. Line and continuum absorption and emission
M. Contini
The line and continuum spectra of the merger galaxy Arp 220 are analysed with the aim of investigating the ionizing and heating sources. We refer to radio, optical, infrared and X-…
Exploring AGN - starburst coexistence in galaxies at z 0.8 by the [OIII]4959+5007/[OIII]4363 line ratio
M. Contini
We analyze by detailed modelling the spectra observed from the sample galaxies at z0.8 presented by Ly et al (2015), constraining the models by the [OIII]5007+4959/[OIII]4363…
The symbiotic star CH Cygni. II. The broad Ly alpha emission line explained by shocks
M. Contini, R. Angeloni, P. Rafanelli
Context. In 1985, at the end of the active phase 1977-1986, a broad (4000 km/s) Ly alpha line appeared in the symbiotic system CH Cygni that had never been observed previously. Aim…
Modelling the spectra of galaxies at redshift 0.4<z<1.15: the gas physical conditions and the element abundances
M. Contini
We revisit the spectra observed by Ramos Almeida et al. (2013) from an homogeneous sample of galaxies at 0.27<z<1.28 with the aim of finding out the characteristics of the single o…
The symbiotic system Z Andromedae : a spectral analysis of the anomalous 1984-1986 outburst
M. Contini
The visual magnitude profile of the symbiotic system Z And during the 1984-1986 activity period appears double peaked and the flux intensity is low compared to outbursts in other e…
Gas and Dust Emission from the Nuclear Region of the Circinus Galaxy
M. Contini, M. A. Prieto, S. M. Viegas
Simultaneous modeling of the line and continuum emission from the nuclear region of the Circinus galaxy is presented. Composite models which include the combined effect of shocks a…
High resolution spectroscopy of the extended narrow-line region of IC 5063 and NGC 7212
E. Congiu, M. Contini, S. Ciroi +6
We studied the properties of the gas of the extended narrow line region (ENLR) of two Seyfert 2 galaxies: IC 5063 and NGC 7212. We analysed high resolution spectra to investigate h…
The Infrared Continuum of Active Galaxies
M. Contini, S. M. Viegas, M. A. Prieto
We discuss the different physical processes contributing to the infrared continuum of AGN, assuming that both photoionization from the active center and shocks ionize and heat the…
Distribution of the heavy elements throughout the extended narrow line region of the Seyfert galaxy NGC 7212
M. Contini, V. Cracco, S. Ciroi +1
The latest observations of line and continuum spectra emitted from the extended narrow line region (ENLR) of the Seyfert 2 galaxy NGC 7212 are analysed using models accounting for…
An analysis of infrared emission spectra from the regions near the Galactic Center
M. Contini
We present consistent modelling of line and continuum IR spectra in the region close to the Galactic center. The models account for the coupled effect of shocks and photoionization…
The peculiar galaxy Mkn 298 revisited through integral field spectroscopy
M. Radovich, S. Ciroi, M. Contini +3
Spectroscopic and imaging data of the peculiar galaxy Mkn 298 are presented in this paper. Narrow-band Halpha and broad-band R images are used to study the star formation rate in t…
MASYS. The AKARI spectroscopic survey of Symbiotic Stars in the Magellanic Clouds
R. Angeloni, S. Ciroi, P. Marigo +4
MASYS is the AKARI spectroscopic survey of Symbiotic Stars in the Magellanic Clouds, and one of the European Open Time Observing Programmes approved for the AKARI (Post-Helium) Pha…
Activity and quiescence in galaxies at redshifts 1.4<z<3.5. The role of the starburst temperature
M. Contini
We investigate 'activity' and 'quiescence' in galaxies at relatively high redshifts by modelling the line(and continuum) spectra of each object. The models account consistently for…
The LLAGN in the centre of the Galaxy
M. Contini
The observations of FIR line and continuum spectra throughout the Galactic centre and in some regions of the disc are analysed in order to determine the physical conditions (densit…
Spectra from the shocked nebulae revealing turbulence near the Galactic Centre
M. Contini, I. Goldman
The spectra emitted from clouds near the Galactic Centre are investigated calculating the UV-optical-IR lines using the physical parameters and the element abundances constrained b…
The Infrared-X-ray continuum correlation in Active Galactic Nuclei
M. Contini, S. M. Viegas, P. E. Campos
The correlation between the soft X-ray and near infrared emission from AGN is analysed using composite models by the code SUMA. We find new evidences for differences in ranges of p…
A grid of composite models for the simulation of the emission-line spectra from the NLR of active galaxies
M. Contini, S. M. Viegas
A grid of composite models for the narrow line region of active galaxies, which consistently account for both the effect of a photoionizing radiation from the active center and of…
Modelling galaxy spectra at redshifts 0.2<z<2.3 by the [OII]/Hb and [OIII]/Hb line ratios
M. Contini
We present the detailed modelling of line spectra emitted from galaxies at redshifts 0.2<z<2.3. The spectra account only for a few oxygen to Hb line ratios. The results show that […
Chemical abundances of Seyfert 2 AGNs IV. Composite models calculated by photoionization + shocks
O. L. Dors, M. Contini, R. A. Riffel +4
We build detailed composite models of photoionization and shock ionization based on the SUMA code to reproduce emission lines emitted from the Narrow Line Regions (NLR) of Seyfert…
Comparison of dust-to-gas ratios in luminous, ultraluminous, and hyperluminous infrared galaxies
M. Contini, T. Contini
The dust-to-gas ratios in three different samples of luminous, ultraluminous, and hyperluminous infrared galaxies are calculated by modelling their radio to soft X-ray spectral ene…
The ionised gas outflow in the Circinus galaxy: kinematics and physical conditions
M. A. Fonseca-Faria, A. RodrÃguez-Ardila, M. Contini +1
We employ MUSE/VLT data to study the ionised and highly ionised gas phases of the feedback in Circinus, the closest Seyfert 2 galaxy to us. The analysis of the nebular emission all…
Dust-to-gas ratios in the Kepler supernova remnant
M. Contini
A new method to evaluate the dust-to-gas ratios in the Kepler SNR is presented. Dust emission in the infrared and bremsstrahlung are calculated consistently, considering that dust…
The optical-ultraviolet continuum of Seyfert 2 galaxies
M. Contini, S. M. Viegas
This paper aims to understand the continuum of Seyfert 2 galaxies. By fitting the single galaxies in the sample of Heckman et al. (1995) with composite models (shock+ photoionizati…
Physical Conditions and Extension of the Coronal Line Region in IC 5063
M. A. Fonseca-Faria, A. RodrÃguez-Ardila, M. Contini +2
We study the ionised and highly ionised gas phases in the Seyfert~2 galaxy IC~5063 by means of VLT/MUSE integral field spectroscopy. Our analysis allowed us to detect a high-ionisa…
Physical conditions and element abundances in SN and GRB host galaxies at different redshifts
M. Contini
We compare the physical parameters and the relative abundances calculated throughout supernova (SN) and gamma-ray burst (GRB) host galaxies by the detailed modelling of the spectra…
Physical conditions and element abundances in galaxies at redshift 0.001<z<3.4 : evolution trends
M. Contini
We have collected an heterogeneous sample of galaxies at redshifts 0.001<z<3.35 with the aim of exploring the evolution of the physical parameters and of the element abundances cal…
A grid of Composite Models for the Simulation of Starburst Galaxy and HII Region Spectra
M. Contini, S. M. Viegas
A grid of models for starburst spectra is presented and compared with power-law models which represent AGNs. The models are composite, i.e., they account for the radiation from the…
2-D spectroscopy and modeling of the biconical ionized gas in NGC 4388
S. Ciroi, M. Contini, P. Rafanelli +1
We present recent results from spectroscopic data and modeling of the biconical ionized gas in the Seyfert-2 galaxy NGC 4388. A field of ~2.6 x 2.4 kpc centered on the nucleus has…
Interpretations of galaxy spectra at high redshift. \ The H_gamma/H_beta excess
M. Contini
Spectra from the cosmic dawn obtained with JWST/NIRSpec (James Webb Space Telescope near-infrared spectroscopy) in the SMACS0723 Early Release Observations are now available. Analy…
The spectral energy distribution of D-type symbiotic stars: the role of dust shells
R. Angeloni, M. Contini, S. Ciroi +1
We have collected continuum data of a sample of D-type symbiotic stars. By modelling their spectral energy distribution in a colliding-wind theoretical scenario we have found the c…
Silicates in D-type symbiotic stars: an ISO overview
R. Angeloni, M. Contini, S. Ciroi +1
We investigate the IR spectral features of a sample of D-type symbiotic stars. Analyzing unexploited ISO-SWS data, deriving the basic observational parameters of dust bands and com…
Gas and dust spectra of the D' type symbiotic star HD330036
R. Angeloni, M. Contini, S. Ciroi +1
We present a comprehensive and self-consistent modelling of the D' type symbiotic star (SS) HD330036 from radio to UV. Within a colliding-wind scenario, we analyse the continuum, l…
The continuum and narrow line region of the NLS1 galaxy Mrk 766
A. Rodriguez-Ardila, M. Contini, S. M. Viegas
We present the first spectroscopic observations in the interval 0.8-4.0 microns, complemented with HST/UV and optical spectroscopy, of the narrow line Seyfert 1 galaxy Mrk766. The…
Observed and predicted Ly-alpha and UV lines for a sample of galaxies at redshifts z<3.7
M. Contini
We explore the origin of the observed Lya and other UV lines from galaxies at z<3.7 by detailed modelling of the spectra. The objects are chosen among those showing a) UV-optical-n…