Publications (55)
The ISM scaling relations in DustPedia late-type galaxies: A benchmark study for the Local Universe
Viviana Casasola, Simone Bianchi, Pieter De Vis +18
The purpose of this work is the characterization of the main scaling relations between all the ISM components (dust, atomic/molecular/total gas), gas-phase metallicity, and other g…
A wide-field HI mosaic of Messier 31. II.The disk warp, rotation and the dark matter halo
Edvige Corbelli, Silvio Lorenzoni, René A. M. Walterbos +2
We test cosmological models of structure formation using the rotation curve of the nearest spiral galaxy, M31, determined using a recent deep, full-disk 21-cm imaging survey smooth…
Sharp Hi Edges in the Outskirts of Disk Galaxies
Edvige Corbelli, Edwin E. Salpeter
Observations indicate that some extended outer disks have a sharp cut off in the surface density of neutral hydrogen when this approaches the value of cm$^{-…
On the nature of faint mid-infrared sources in M33
Edvige Corbelli, Carlo Giovanardi, Francesco Palla +1
We investigate the nature of 24micron sources in M33 which have weak or no associated Halpha emission. Both bright evolved stars and embedded star forming regions are visible as co…
WALLABY pilot survey: Blinded by the light -- discovery of a fourth member in the ESO 179-013 system
Rayssa Guimarães Silva, Marco Grossi, Denise R. Gonçalves +12
We present new ASKAP/WALLABY HI observations of the nearby dwarf galaxy system ESO 179-013 (Kathryn's Wheel), the nearest known collisional ring galaxy, located 10 Mpc away in the…
DustPedia and Local Volume Legacy samples as benchmarks for dust evolution in galaxies
Evangelos D. Paspaliaris, Simone Bianchi, Edvige Corbelli +8
DustPedia and LVL are two samples representative of the local galaxy population, including in total 1011 unique objects of all morphological types, with a wide range of stellar mas…
The population of Young Stellar Clusters throughout the disk of M33
Saurabh Sharma, Edvige Corbelli, Carlo Giovanardi +2
The properties of young stellar clusters (YSCs) in M33, identified from the center out to about twice the size of the bright star-forming disk,are investigated. We find 915 discret…
A Wide-field High Resolution HI Mosaic of Messier 31: I. Opaque Atomic Gas and Star Formation Rate Density
Robert Braun, David Thilker, Rene Walterbos +1
We have undertaken a deep, wide-field HI imaging survey of M31, reaching a maximum resolution of about 50 pc and 2 km/s across a 95x48 kpc region. The HI mass and brightness sensit…
The cluster birthline in M33
Edvige Corbelli, Simon Verley, Bruce Elmegreen +1
We test the reliability of infrared (IR) emission to trace star formation in individual star-forming sites of M33, and outline a new method for testing the distribution function of…
Radio emission during the formation of stellar clusters in M33
Edvige Corbelli, Jonathan Braine, Fatemeh S. Tabatabaei
We investigate thermal and non-thermal radio continuum associated with the early formation and evolution of Young Stellar Clusters (YSCs) selected by their MIR emission in M33. For…
Pressure and Star Formation in LITTLE THINGS Dwarf Irregular Galaxies
Bruce G. Elmegreen, Deidre A. Hunter, Edvige Corbelli
The surface densities of star formation, Sigma_SFR, in 24 dwarf irregular (dIrr) galaxies from the LITTLE THINGS survey are combined with gas surface densities and midplane pressur…
The CO-to-H2 Conversion Factor From Infrared Dust Emission Across the Local Group
Adam K. Leroy, Alberto Bolatto, Karl Gordon +8
We estimate the conversion factor relating CO emission to H2 mass, alpha_CO, in five Local Group galaxies that span approximately an order of magnitude in metallicity - M31, M 33,…
Heavy elements unveil the non primordial origin of the giant HI ring in Leo
Edvige Corbelli, Giovanni Cresci, Filippo Mannucci +2
The origin and fate of the most extended extragalactic neutral cloud known in the local Universe, the Leo ring, is still debated 38 years after its discovery. Its existence is alte…
Exploring extreme conditions for star formation: a deep search for molecular gas in the Leo ring
Edvige Corbelli, David Thilker, Filippo Mannucci +1
We carry out sensitive searches for the CO J=1-0 and J=2-1 lines in the giant extragalactic HI ring in Leo to investigate the star formation process within environments where gas m…
The Extended Rotation Curve and the Dark Matter Halo of M33
Edvige Corbelli, Paolo Salucci
We present the 21-cm rotation curve of the nearby galaxy M33 out to a galactocentric distance of 16 kpc (13 disk scale-lengths). The rotation curve keeps rising out to the last mea…
The outskirts of M33: Tidally induced distortions versus signatures of gas accretion
Edvige Corbelli, Andreas Burkert
We investigate a possible close encounter between M33 and M31 in the past to understand the role of galaxy-galaxy interactions in shaping the matter distribution in galaxy outskirt…
Gaseous nebulae and massive stars in the giant HI ring in Leo
Edvige Corbelli, Filippo Mannucci, David Thilker +2
Chemical abundances in the Leo ring, the largest HI cloud in the local Universe, have recently been determined to be close or above solar, incompatible with a previously claimed pr…
The faint HI environment of galaxies: a laboratory for testing galaxy formation
Edvige Corbelli
The SKA is a unique instrument to open a window on many aspects of galaxy formation and evolution which can be examined in our Local Universe. Here I will focus on the outermost re…
Rise and fall of molecular clouds across the M33 disk
Edvige Corbelli, Jonathan Braine, Carlo Giovanardi
We carried out deep searches for CO line emission in the outer disk of M33, at R>7 kpc, and examined the dynamical conditions that can explain variations in the mass distribution o…
The lunar eclipse and the dawn of astrophysics in van Gogh's masterpieces
Edvige Corbelli
When visiting the Museum of Modern Art's special exhibit ''van Gogh and the Colors of the Night (New York, USA, 2008)'' I was impressed by the artist's effort to paint and write ab…
Star formation drivers across the M33 disk
Edvige Corbelli, Bruce Elmegreen, Sara Ellison +1
We investigate the star formation process across the disk of M33 using a multiwavelength dataset and disk dynamics. We computed numerically equilibrium values of gas densities and…
The Herschel Virgo Cluster Survey: X.The relationship between cold dust and molecular gas content in Virgo spirals
Edvige Corbelli, Simone Bianchi, Luca Cortese +16
Using the far-infrared emission, as observed by the Herschel Virgo Cluster Survey (HeViCS), and the integrated HI and CO brightness, we infer the dust and total gas mass for a magn…
Instabilities in Photoionized Interstellar Gas
Edvige Corbelli, Andrea Ferrara
We present a linear analysis of acoustic and thermo-reactive instabilities in a diffuse gas, photoionized and heated by a radiation field, cooled by collisional excitation of hydro…
A journey across the M33 disk
Edvige Corbelli, Laura Magrini, Simon Verley
The Local Group member M33 is a pure disk galaxy bearing no prominent bulge or stellar halo. It constitutes a challenge for any hierarchical galaxy formation theory and an ideal la…
The Herschel Virgo Cluster Survey - XIII. Dust in early-type galaxies
Sperello di Serego Alighieri, Simone Bianchi, Cirino Pappalardo +16
Aims. We study the dust content of a large optical input sample of 910 early-type galaxies (ETG) in the Virgo cluster, extending also to the dwarf ETG, and examine the results in r…
A Comprehensive Statistical Analysis of the Gas Distribution in Lyman-limit and Damped Lyman-alpha Absorption Systems
Rino Bandiera, Edvige Corbelli
In this paper we show how to use data on Lyman-limit and Damped Lyman-alpha absorption systems to derive the hydrogen ionization fractions and the distribution of the face-on total…
Can hidden correlations mimic a variable fine structure constant?
Rino Bandiera, Edvige Corbelli
Murphy et al. (2003a, MNRAS, 345, 609) claim to find evidence of cosmological variations of the fine structure constant in the spectra of intervening QSO absorption line syste…
The Probability Distribution Function of Gas Surface Density in M33
Edvige Corbelli, Bruce G. Elmegreen, Jonathan Braine +1
The probability distribution functions (PDFs) for atomic, molecular, and total gas surface densities of M33 are determined at a resolution of about 50~pc over regions that share co…
The Herschel Virgo Cluster Survey. XI. Environmental effects on molecular gas and dust in spiral disks
Ciro Pappalardo, Simone Bianchi, Edvige Corbelli +19
We investigate the dust-to-gas mass ratio and the environmental effects on the various components of the interstellar medium for a spatially resolved sample of Virgo spirals. We ha…
The effects of an ionizing background on the HI column density distribution in the local Universe
Edvige Corbelli, Rino Bandiera
Using data on the HI column density distribution in the local Universe, f(N_{HI}), we show how to determine g(N_{H}), the distribution of the total gas (HI+HII) column density. A s…
Sharp HI edges at high z: the gas distribution from Damped Lyman-alpha to Lyman-limit absorption systems
Edvige Corbelli, Edwin E. Salpeter, Rino Bandiera
We derive the distribution of neutral and ionized gas in high redshift clouds which are optically thick to hydrogen ionizing radiation, using published data on Lyman-limit and Damp…
The ALMaQUEST Survey XI: A strong but non-linear relationship between star formation and dynamical equilibrium pressure
Sara L. Ellison, Hsi-An Pan, Asa F. L. Bluck +9
We present the extended ALMA MaNGA QUEnching and STar formation survey, a combination of the original 46 ALMaQUEST galaxies plus new ALMA observations for a further 20 interacting…
A panchromatic spatially resolved analysis of nearby galaxies -- II. The main sequence - gas relation at sub-kpc scale in grand-design spirals
Laura Morselli, Giulia Rodighiero, Andrea Enia +13
In the second work of this series, we analyse the connection between the availability of gas and the position of a region with respect to the spatially resolved main sequence (MS)…
Metal production in M33: space and time variations
Laura Magrini, Letizia Stanghellini, Edvige Corbelli +2
Nearby galaxies are ideal places to study in detail metallicity gradients and their time evolution. We consider chemical abundances of a new sample of \hii\ regions complemented wi…
From molecules to Young Stellar Clusters: the star formation cycle across the M33 disk
Edvige Corbelli, Jonathan Brain, Rino Bandiera +8
To shed light on the time evolution of local star formation episodes in M33, we study the association between 566 Giant Molecular Clouds (GMCs), identified through the CO (J=2-1) I…
Dynamical signatures of a LCDM-halo and the distribution of the baryons in M33
Edvige Corbelli, David Thilker, Stefano Zibetti +2
We map the neutral atomic gas content of M33 using high resolution VLA and GBT observations and fit a tilted ring model to determine the orientation of the extended gaseous disk an…
Star formation in disk galaxies driven by primordial H_2
Edvige Corbelli, Daniele Galli, Francesco Palla
We show that gaseous \HI disks of primordial composition irradiated by an external radiation field can develop a multiphase medium with temperatures between 10^2 and 10^4 K due to…
Properties and rotation of molecular clouds in M 33
Jonathan Braine, Erik Rosolowsky, Pierre Gratier +2
The sample of 566 molecular clouds identified in the CO(2--1) IRAM survey covering the disk of M~33 is explored in detail.The clouds were found using CPROPS and were subsequently c…
The Onset of the Cold HI Phase in Disks of Protogalaxies
Edvige Corbelli, Edwin E. Salpeter
We discuss a possible delay experienced by protogalaxies with low column density of gas in forming stars over large scales. After the hydrogen has recombined, as the external ioniz…
Hi Spin Temperatures and Heating Requirements in Outer Regions of Disk Galaxies
Edvige Corbelli, Edwin E. Salpeter
ABSRACT:We show how to use 21-cm emission and absorption studies to estimate the heat inputs to the neutral gas in low pressure environments, such as in outer disks of spiral galax…
The resolved scaling relations in DustPedia: Zooming in on the local Universe
Viviana Casasola, Simone Bianchi, Laura Magrini +18
We perform a homogeneous analysis of an unprecedented set of spatially resolved scaling relations (SRs) between ISM components and other properties in the range of scales 0.3-3.4 k…
The Herschel Virgo Cluster Survey. IX. Dust-to-gas mass ratio and metallicity gradients in four Virgo spiral galaxies
Laura Magrini, Simone Bianchi, Edvige Corbelli +20
Using Herschel data from the Open Time Key Project the Herschel Virgo Cluster Survey (HeViCS), we investigated the relationship between the metallicity gradients expressed by metal…
Luminosity functions and IMF variations from large samples of HII regions and molecular clouds
Jonathan Braine, Edvige Corbelli
Large high-quality samples of HII regions and their parent Giant Molecular Clouds (GMC) are now available for local galaxies. It is therefore possible to investigate links between…
Exploring the interplay of dust and gas phases in DustPedia star-forming galaxies
Francesco Salvestrini, Simone Bianchi, Edvige Corbelli
Molecular gas is the key ingredient of the star formation cycle, and tracing its dependencies on other galaxy properties is essential for understanding galaxy evolution. In this wo…
The radial dependence of dark matter distribution in M33
Ernesto López Fune, Paolo Salucci, Edvige Corbelli
The stellar and gaseous mass distributions, as well as the extended rotation curve in the nearby galaxy M33 are used to derive the radial distribution of dark matter density in the…
On the Continuing Formation of the Andromeda Galaxy: Detection of HI Clouds in the M31 Halo
David A. Thilker, Robert Braun, Rene A. M. Walterbos +4
Green Bank Telescope (GBT) 21cm observations have revealed a faint, yet extensive HI cloud population surrounding the Andromeda Galaxy (M31). The newfound objects are likely analog…
A warped disk model for M33 and the 21-cm line width in spiral galaxies
Edvige Corbelli, Stephen E. Schneider
To determine the actual HI distribution and the velocity field in the outermost disk of the spiral galaxy M33, a tilted-ring model is fitted to 21-cm line data taken with the Areci…
The building up of the disk galaxy M33 and the evolution of the metallicity gradient
Laura Magrini, Edvige Corbelli, Daniele Galli
The evolution of radial gradients of metallicity in disk galaxies and its relation with the disk formation are not well understood. Theoretical models of galactic chemical evolutio…
Testing MOND with Local Group spiral galaxies
Edvige Corbelli, Paolo Salucci
The rotation curves and the relative mass distributions of the two nearby Local Group spiral galaxies, M31 and M33, show discrepancies with Modified Newtonian dynamic (MOND) predic…
The Cluster Birthline and the formation of stellar clusters in M33
Edvige Corbelli, Carlo Giovanardi, Marco Grossi
We present a new method to analyze the IMF at its high mass end in young stellar clusters, which rely on two integrated observables: the cluster bolometric and Halpha luminosity. U…
Neutral Hydrogen Absorption and Emission in the Quasar/Galaxy Pair 3C275.1/\NGC4651
Stephen E. Schneider, Edvige Corbelli
3C275.1 and \NGC4651 make a particularly interesting quasar/galaxy pairing because of the alignment of such a strong radio emitter behind the outer H\I disk of a relatively undistu…
Bar imprints on the inner gas kinematics of M33
Edvige Corbelli, Rene' A. M. Walterbos
We present measurements of the stellar and gaseous velocities in the central 5' of the Local Group spiral M33. The data were obtained with the ARC 3.5m telescope. Blue and red spec…
The Herschel Virgo Cluster Survey. XVII. SPIRE point-source catalogs and number counts
Ciro Pappalardo, George J. Bendo, Simone Bianchi +19
We present three independent catalogs of point-sources extracted from SPIRE images at 250, 350, and 500 micron as a part of the Herschel Virgo Cluster Survey (HeViCS). The source p…
Dark matter and visible baryons in M33
Edvige Corbelli
In this paper we present new measurements of the gas kinematics in M33 using the CO J=1-0 line. The resulting rotational velocities complement previous 21-cm line data for a very a…
A decline and fall in the future of Italian Astronomy?
Angelo Antonelli, Vincenzo Antonuccio-Delogu, Andrea Baruffolo +89
On May 27th 2010, the Italian astronomical community learned with concern that the National Institute for Astrophysics (INAF) was going to be suppressed, and that its employees wer…