379 citations · 1.3k across the 27 of their papers we have counts for
27 papers
The First High Frequency Technosignature Search Survey with the Sardinia Radio Telescope
Lorenzo Manunza, Alice Vendrame, Luca Pizzuto +30
The quest for radio signals from technologically-advanced extraterrestrial intelligence has traditionally concentrated on the vicinity of 1.4 GHz. In this paper, we extend the sear…
Signatures of X-ray dominated chemistry in the spectra of exoplanetary atmospheres
Daniele Locci, Giambattista Aresu, Antonino Petralia +3
High-energy radiation from stars impacts planetary atmospheres deeply affecting their chemistry, providing departures from chemical equilibrium. While the upper atmospheric layers…
The GAPS programme at TNG. XLV. HI Balmer lines transmission spectroscopy and NLTE atmospheric modelling of the ultra-hot Jupiter KELT-20b/MASCARA-2b
L. Fossati, F. Biassoni, G. M. Cappello +27
We aim at extracting the transmission spectrum of the HI Balmer lines of the ultra-hot Jupiter (UHJ) KELT-20b/MASCARA-2b from observations and to further compare the results with w…
A systematic study of \ce{CO2} planetary atmospheres and their link to the stellar environment
A. Petralia, E. Alei, G. Aresu +5
The Milky Way Galaxy is literally teeming with exoplanets; thousands of planets have been discovered, with thousands more planet candidates identified. Terrestrial-like planets are…
X-ray radiative transfer in protoplanetary disks - The role of dust and X-ray background fields
Ch. Rab, M. Güdel, P. Woitke +5
The X-ray luminosities of T Tauri stars are about two to four orders of magnitude higher than the luminosity of the contemporary Sun. As these stars are born in clusters, their dis…
Stellar energetic particle ionization in protoplanetary disks around T Tauri stars
Ch. Rab, M. Güdel, M. Padovani +4
Anomalies in the abundance measurements of short lived radionuclides in meteorites indicate that the protosolar nebulae was irradiated by a high amount of energetic particles (E$\g…
Thermochemical modelling of brown dwarf discs
A. J. Greenwood, I. Kamp, L. B. F. M. Waters +5
The physical properties of brown dwarf discs, in terms of their shapes and sizes, are still largely unexplored by observations. To what extent brown dwarf discs are similar to scal…
The mid-IR water and silicate relation in protoplanetary disks
S. Antonellini, J. Bremer, I. Kamp +7
Mid-IR water lines from protoplanetary disks around T Tauri stars have a detection rate of 50\%. Models have identified multiple physical properties of disks such as dust-to-gas ma…
Modelling extragalactic extinction through gamma-ray burst afterglows
Alberto Zonca, Cesare Cecchi-Pestellini, Giacomo Mulas +2
We analyze extragalactic extinction profiles derived through gamma-ray burst afterglows, using a dust model specifically constructed on the assumption that dust grains are not immu…
Consistent dust and gas models for protoplanetary disks. I. Disk shape, dust settling, opacities, and PAHs
P. Woitke, M. Min, C. Pinte +19
We propose a set of standard assumptions for the modelling of Class II and III protoplanetary disks, which includes detailed continuum radiative transfer, thermo-chemical modelling…
Mid-IR spectra of Pre-Main Sequence Herbig stars: an explanation for the non-detections of water lines
S. Antonellini, I. Kamp, F. Lahuis +7
The mid-IR detection rate of water lines in disks around Herbig stars disks is about 5\%, while it is around 50\% for disks around TTauri stars. The reason for this is still unclea…
Understanding the water emission in the mid- and far-IR from protoplanetary disks around T~Tauri stars
S. Antonellini, I. Kamp, P. Riviere-Marichalar +6
We investigate which properties of protoplanetary disks around T Tauri stars affect the physics and chemistry in the regions where mid- and far-IR water lines originate and their r…
Modelling dust extinction in the Magellanic Clouds
Alberto Zonca, Silvia Casu, Giacomo Mulas +2
We model the extinction profiles observed in the Small and Large Magellanic clouds with a synthetic population of dust grains consisting by core-mantle particles and a collection o…
[OI] disk emission in the Taurus star forming region
G. Aresu, I. Kamp, R. Meijerink +8
The structure of protoplanetary disks is thought to be linked to the temperature and chemistry of their dust and gas. Whether the disk is flat or flaring depends on the amount of r…
Probing the gaseous disk of T Tau N with CN 5-4 lines
L. Podio, I. Kamp, C. Codella +12
We present spectrally resolved Herschel/HIFI observations of the young multiple system T Tau in atomic and molecular lines. While CO, H2O, [C II], and SO lines trace the envelope a…
Gas signatures of Herbig Ae/Be disks probed with Herschel SPIRE spectroscopy
Matthijs H. D. van der Wiel, David A. Naylor, Giambattista Aresu +1
Herbig Ae/Be objects, like their lower mass counterparts T Tauri stars, are seen to form a stable circumstellar disk which is initially gas-rich and could ultimately form a planeta…
Gas lines from the 5-Myr old optically thin disk around HD141569A. Herschel observations and modeling
Wing-Fai Thi, Christophe Pinte, Eric Pantin +20
At the distance of 99-116 pc, HD141569A is one of the nearest HerbigAe stars that is surrounded by a tenuous disk, probably in transition between a massive primordial disk and a de…
Uncertainties in water chemistry in disks: An application to TW Hya
I. Kamp, W. -F. Thi, G. Meeus +7
Context. This paper discusses the sensitivity of water lines to chemical processes and radiative transfer for the protoplanetary disk around TW Hya. The study focuses on the Hersch…
Tracing the Physical Conditions in Active Galactic Nuclei with Time-Dependent Chemistry
Rowin Meijerink, Marco Spaans, Inga Kamp +3
We present an extension of the code ProDiMo that allows for a modeling of processes pertinent to active galactic nuclei and to an ambient chemistry that is time dependent. We prese…
GASPS - a Herschel survey of gas and dust in Protoplanetary Disks: Summary and Initial Statistics
W. R. F. Dent, W. F. Thi, I. Kamp +47
GASPS is a far-infrared line and continuum survey of protoplanetary and young debris disks using PACS on the Herschel Space Observatory. The survey includes [OI] at 63 microns, as…
Water vapor in the protoplanetary disk of DG Tau
L. Podio, I. Kamp, C. Codella +13
Water is key in the evolution of protoplanetary disks and the formation of comets and icy/water planets. While high excitation water lines originating in the hot inner disk have be…
FUV and X-ray irradiated protoplanetary disks: a grid of models II - Gas diagnostic line emission
Giambattista Aresu, Rowin Meijerink, Inga Kamp +3
Most of the mass in protoplanetary disks is in the form of gas. The study of the gas and its diagnostics is of fundamental importance in order to achieve a detailed description of…
FUV and X-ray irradiated protoplanetary disks: a grid of models I. The disk structure
R. Meijerink, G. Aresu, I. Kamp +3
Context. Planets are thought to eventually form from the mostly gaseous (~99% of the mass) disks around young stars. The density structure and chemical composition of protoplanetar…
Gas modelling in the disc of HD 163296
I. Tilling, P. Woitke, G. Meeus +19
We present detailed model fits to observations of the disc around the Herbig Ae star HD 163296. This well-studied object has an age of ~ 4 Myr, with evidence of a circumstellar dis…