A. Maggio

The GAPS Programme at the TNG

S. Filomeno, T. Trifonov, M. Damasso, M. Baratella et autres

Context . Increasing interest in young exoplanets is leading to a growing effort to understand the formation and evolutionary processes responsible for their different architectures. One interesting target is TOI-5734, a relatively young K3–K4 dwarf star (500 −150 +300 Myr) showing a …

it, de, bg, cl, us, es, ch, ru, sk (code pays fourni par la source)

Time-resolved X-ray spectra of Proxima Centauri as seen by XMM-Newton

A. Damonte, I. Pillitteri, A. Maggio, A. García Muñoz et autres

Context . Stellar soft X-ray ([1, 100] Å) and extreme ultraviolet (also EUV, [100, 920] Å; jointly, XUV) radiation affect the evolution and chemistry of exoplanet atmospheres. It is, however, uncertain to what extent the radiation’s short-term variability contributes to these effects. …

fr, it (code pays fourni par la source)

Dioctophyme renale in a 5-Month-Old Puppy from Delta del Tigre, Uruguay

Alejandra Navratil-Oronoz, Gillian Neumann Wadeer, Federico Machín, A. Maggio et autres

Dioctophyme renale, also known as the giant red kidney worm, is a parasitic nematode that infects various mammalian hosts, including dogs, and is associated with an important renal pathology. This case report describes the first known D. renale parasitism in a 5-month-old …

uy (code pays fourni par la source)

A joint effort to discover and characterize two resonant mini Neptunes around TOI-1803 with TESS, HARPS-N and CHEOPS

T. Zingales, L. Malavolta, L. Borsato, D. Turrini et autres

We present the discovery of two mini Neptunes near a 2:1 orbital resonance configuration orbiting the K0 star TOI-1803. We describe their orbital architecture in detail and suggest some possible formation and evolution scenarios. Using CHEOPS, TESS, and HARPS-N datasets we can …

XUV irradiation of young planetary atmospheres. Results from a joint XMM-Newton and HST observation of HIP67522

A. Maggio, I. Pillitteri, C. Argiroffi, D. Locci et autres

The evaporation and the chemistry of the atmospheres of warm and hot planets are strongly determined by the high-energy irradiation they receive from their parent stars. This is more crucial among young extra-solar systems, due to the high activity of stars at …

The GAPS Programme at TNG

M. Damasso, D. Locci, S. Benatti, A. Maggio et autres

Context. The long-term Global Architecture of Planetary Systems (GAPS) programme has been characterising a sample of young systems with transiting planets via spectroscopic and photometric follow-up observations. One of the main goals of GAPS is measuring planets’ dynamical masses and bulk densities …

The GAPS Programme at TNG. LIX. A characterisation study of the $\sim$300 Myr old multi-planetary system orbiting the star BD+40 2790 (TOI-2076)

M. Damasso, D. Locci, S. Benatti, A. Maggio et autres

We collected more than 300 high-resolution spectra of the 300 Myr old star BD+40 2790 (TOI-2076) over ~3 years. This star hosts three transiting planets discovered by TESS, with orbital periods ~10, 21, and 35 days. BD+40 2790 shows an activity-induced scatter …

The GAPS program at TNG XLVII: The unusual formation history of V1298 Tau

D. Turrini, F. Marzari, D. Polychroni, R. Claudi et autres

Observational data from space and ground-based campaigns reveal that the 10-30 Ma old V1298 Tau star hosts a compact and massive system of four planets. Mass estimates for the two outer giant planets point to unexpectedly high densities for their young ages. …

TOI-179: a young system with a transiting compact Neptune-mass planet and a low-mass companion in outer orbit

S. Desidera, M. Damasso, R. Gratton, S. Benatti et autres

Transiting planets around young stars are key benchmarks for our understanding of planetary systems. One of such candidates was identified around the K dwarf HD 18599 by TESS, labeled as TOI-179. We present the confirmation of the transiting planet and the characterization …

The EChO science case

G. Tinetti, P. Drossart, Paul Eccleston, P. Hartogh et autres