P. Ranalli
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View article: The hot interstellar medium towards 4U 1820-30: a Bayesian analysis
The hot interstellar medium towards 4U 1820-30: a Bayesian analysis Open
\nContext. High-ionisation lines in the soft X-ray band are generally associated to either interstellar hot gas along the line of sight or to photoionised gas intrinsic to the source. In the low-mass X-ray binary 4U 1820-30, the nature of …
View article: The XMM deep survey in the CDFS
The XMM deep survey in the CDFS Open
We present the X-ray spectra of 185 bright sources detected in the XMM-Newton deep survey of the Chandra Deep Field South with the three EPIC cameras combined. The 2–10 keV flux limit of the sample is 2 × 10 −15 erg s −1 cm −2 . The source…
View article: The XMM deep survey in the CDFS XI. X-ray properties of 185 bright sources
The XMM deep survey in the CDFS XI. X-ray properties of 185 bright sources Open
We present X-ray spectra of 185 bright sources detected in the XMM-Newton deep survey of the Chandra Deep Field South, combining the three EPIC cameras. The 2-10 keV flux limit of the sample is 2e-15 erg/s/cm2. The sources are distributed …
View article: The XMM deep survey in the CDFS: XI. X-ray spectral properties of 185 bright sources
The XMM deep survey in the CDFS: XI. X-ray spectral properties of 185 bright sources Open
We present the X-ray spectra of 185 bright sources detected in the XMM-Newton deep survey of the Chandra Deep Field South with the three EPIC cameras combined. The 2–10 keV flux limit of the sample is 2 × 10−15 erg s−1 cm−2. The sources ar…
View article: The XMM-SERVS survey: new XMM–Newton point-source catalogue for the XMM-LSS field
The XMM-SERVS survey: new XMM–Newton point-source catalogue for the XMM-LSS field Open
We present an X-ray point-source catalogue from the XMM-Large Scale Structure (XMM-LSS) survey region, one of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields. We target the XMM-LSS region with 1.3 Ms of new XM…
View article: Astrometry and exoplanets in the<i>Gaia</i>era: a Bayesian approach to detection and parameter recovery
Astrometry and exoplanets in the<i>Gaia</i>era: a Bayesian approach to detection and parameter recovery Open
The Gaia mission is expected to make a significant contribution to the knowledge of exoplanet systems, both in terms of their number and of their physical properties. We develop Bayesian methods and detection criteria for orbital fitting, …
View article: The XMM deep survey in the CDF-S
The XMM deep survey in the CDF-S Open
[Aims]: We aim to study the variability properties of bright hard X-ray selected active galactic nuclei (AGN) in the redshift range between 0.3 and 1.6 detected in the Chandra Deep Field South (XMM-CDFS) by a long (∼3 Ms) XMM observation. …
View article: The XMM deep survey in the CDF-S. X. X-ray variability of bright sources
The XMM deep survey in the CDF-S. X. X-ray variability of bright sources Open
We aim to study the variability properties of bright hard X-ray selected Active Galactic Nuclei (AGN) with redshift between 0.3 and 1.6 detected in the Chandra Deep Field South (XMM-CDFS) by a long XMM observation. Taking advantage of the …
View article: High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L* population
High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L* population Open
We investigate the population of high-redshift (3≤z < 6) active galactic nuclei (AGN) selected in the two deepest X-ray surveys, the 7 Ms Chandra Deep Field-South and 2 Ms Chandra Deep Field-North. Their outstanding sensitivity and spectra…
View article: The XXL Survey
The XXL Survey Open
Modern cosmological simulations heavily rely on feedback from active galactic nuclei (AGN) in order to stave off overcooling in massive galaxies, and galaxy groups and clusters. Given that AGN are a key component of such simulations, an im…
View article: A new, faint population of X-ray transients
A new, faint population of X-ray transients Open
© 2017 The Authors. We report on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint (mR = 27.5mag, zph ~2.2) host in the CANDELS survey. The X-ray event is c…
View article: THE CHANDRA DEEP FIELD-SOUTH SURVEY: 7 MS SOURCE CATALOGS
THE CHANDRA DEEP FIELD-SOUTH SURVEY: 7 MS SOURCE CATALOGS Open
We present X-ray source catalogs for the ≈7 Ms exposure of the Chandra Deep Field-South (CDF-S), which covers a total area of 484.2 arcmin 2 . Utilizing wavdetect for initial source detection and ACIS Extract for photometric extraction and…
View article: Compton-Thick Agn In Multi-Wavelength Surveys
Compton-Thick Agn In Multi-Wavelength Surveys Open
I will review the most recent results on the search for CT AGN through multi-wavelength surveys, and on the study of their host properties.
View article: GaiaNIR: Combining optical and Near-Infra-Red (NIR) capabilities with Time-Delay-Integration (TDI) sensors for a future Gaia-like mission
GaiaNIR: Combining optical and Near-Infra-Red (NIR) capabilities with Time-Delay-Integration (TDI) sensors for a future Gaia-like mission Open
ESA recently called for new "Science Ideas" to be investigated in terms of feasibility and technological developments -- for technologies not yet sufficiently mature. These ideas may in the future become candidates for M or L class mission…
View article: Compton-thick AGN in the 70-month<i>Swift</i>-BAT All-Sky Hard X-ray Survey: A Bayesian approach
Compton-thick AGN in the 70-month<i>Swift</i>-BAT All-Sky Hard X-ray Survey: A Bayesian approach Open
The 70-month Swift-BAT catalogue provides a sensitive view of the extragalactic X-ray sky at hard energies (>10 keV) containing about 800 active galactic nuclei (AGN). We explore its content in heavily obscured, Compton-thick AGN by combin…
View article: The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion
The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion Open
We exploit the new 7 Ms Chandra observations in the CDF-S, the deepest X-ray survey to date, coupled with CANDELS/GOODS- S data, to measure the total X-ray emission arising from ~2000 galaxies at 3.5 < z < 6.5. This aim is achieved by stac…
View article: THE EVOLUTION OF NORMAL GALAXY X-RAY EMISSION THROUGH COSMIC HISTORY: CONSTRAINTS FROM THE 6 MS CHANDRA DEEP FIELD-SOUTH
THE EVOLUTION OF NORMAL GALAXY X-RAY EMISSION THROUGH COSMIC HISTORY: CONSTRAINTS FROM THE 6 MS CHANDRA DEEP FIELD-SOUTH Open
We present measurements of the evolution of normal-galaxy X-ray emission from 0–7 using local galaxies and galaxy samples in the ≈6 Ms Chandra Deep Field-South (CDF-S) survey. The majority of the CDF-S galaxies are observed at rest-frame e…
View article: The XXL Survey
The XXL Survey Open
Context. X-ray extragalactic surveys are ideal laboratories for the study of the evolution and clustering of active galactic nuclei (AGN). Usually, a combination of deep and wide surveys is necessary to create a complete picture of the pop…
View article: THE CHANDRA COSMOS LEGACY SURVEY: OVERVIEW AND POINT SOURCE CATALOG
THE CHANDRA COSMOS LEGACY SURVEY: OVERVIEW AND POINT SOURCE CATALOG Open
The COSMOS-Legacy survey is a 4.6 Ms Chandra program that has imaged 2.2 deg 2 of the COSMOS field with an effective exposure of ks over the central 1.5 deg 2 and of ks in the remaining area. The survey is the combination of 56 new observa…
View article: THE CHANDRA COSMOS LEGACY SURVEY: OPTICAL/IR IDENTIFICATIONS
THE CHANDRA COSMOS LEGACY SURVEY: OPTICAL/IR IDENTIFICATIONS Open
We present the catalog of optical and infrared counterparts of the Chandra COSMOS-Legacy Survey, a 4.6 Ms Chandra program on the 2.2 deg 2 of the COSMOS field, combination of 56 new overlapping observations obtained in Cycle 14 with the pr…