activity
20172025
most citedSeparating planetary reflex Doppler shifts from stellar variability in the wavelength domain

97 citations · 854 across the 29 of their papers we have counts for

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24 papers · 1 filter

astro-ph.EP2025

First detection of variable radio emission originating from the infant planetary system V1298 Tau

M. Damasso, O. Morata, S. Kaur +13

V1298 Tau is a very young and magnetically active star which hosts a benchmark multi-planetary system to study planet formation and evolutionary history at the earliest stages. We…

astro-ph.EP2024★ 34 cited

The GAPS Programme at TNG LV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system

M. Basilicata, P. Giacobbe, A. S. Bonomo +29

The atmospheric characterisation of hot and warm Neptune-size exoplanets is challenging due to their small radius and atmospheric scale height. The warm-Neptune HAT-P-11b is a rema…

astro-ph.EP2024

The GAPS Programme at TNG. LIII. New insights on the peculiar XO-2 system

A. Ruggieri, S. Desidera, K. Biazzo +20

Planets in binary systems are a fascinating and yet poorly understood phenomenon. Since there are only a few known large-separation systems in which both components host planets, c…

astro-ph.EP2023

The GAPS Programme at TNG L -- TOI-4515 b: An eccentric warm Jupiter orbiting a 1.2 Gyr-old G-star

I. Carleo, L. Malavolta, S. Desidera +68

Context. Different theories have been developed to explain the origins and properties of close-in giant planets, but none of them alone can explain all of the properties of the war…

astro-ph.EP2023★ 10 cited

A review of planetary systems around HD 99492, HD 147379 and HD 190007 with HARPS-N

M. Stalport, M. Cretignier, S. Udry +26

The Rocky Planet Search (RPS) program is dedicated to a blind radial velocity (RV) search of planets around bright stars in the Northern hemisphere, using the high-resolution echel…

astro-ph.EP2023★ 18 cited

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

D. Turrini, F. Marzari, D. Polychroni +33

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…

astro-ph.EP2023★ 8 cited

The GAPS programme at TNG. XLVI. Deep search for low-mass planets in late-dwarf systems hosting cold Jupiters

M. Pinamonti, D. Barbato, A. Sozzetti +30

We present the results of a high-cadence and high-precision radial velocity (RV) monitoring of 3 late-type dwarf stars hosting long-period giants with well-measured orbits, in orde…

astro-ph.EP2023★ 22 cited

The GAPS Programme at TNG XLII. A characterisation study of the multi-planet system around the 400 Myr-old star HD 63433 (TOI-1726)

M. Damasso, D. Locci, S. Benatti +34

For more than two years, we monitored with the HARPS-N spectrograph the 400 Myr-old star HD\,63433, which hosts two close-in (orbital periods and days) s…

astro-ph.EP2023★ 29 cited

The CARMENES search for exoplanets around M dwarfs. A long-period planet around GJ 1151 measured with CARMENES and HARPS-N data

J. Blanco-Pozo, M. Perger, M. Damasso +37

Detecting a planetary companion in a short-period orbit through radio emission from the interaction with its host star is a new prospect in exoplanet science. Recently, a tantalisi…

astro-ph.EP2022★ 56 cited

The GAPS Programme at TNG. XLI. The climate of KELT-9b revealed with a new approach to high spectral resolution phase curves

L. Pino, M. Brogi, J. M. Désert +25

[Abridged] We present a novel method to study the thermal emission of exoplanets as a function of orbital phase at very high spectral resolution, and apply it to investigate the cl…

astro-ph.EP2022★ 50 cited

The GAPS Programme at TNG XXXVIII. Five molecules in the atmosphere of the warm giant planet WASP-69b detected at high spectral resolution

G. Guilluy, P. Giacobbe, I. Carleo +32

The field of exo-atmospheric characterisation is progressing at an extraordinary pace. Atmospheric observations are now available for tens of exoplanets, mainly hot and warm inflat…

astro-ph.EP2022★ 16 cited

The GAPS Programme at TNG XL: A puffy and warm Neptune-sized planet and an outer Neptune-mass candidate orbiting the solar-type star TOI-1422

L. Naponiello, L. Mancini, M. Damasso +55

We investigate the exoplanet candidate TOI-1422b, which was discovered by the TESS space telescope around the high proper-motion G2V star TOI-1422 ( mag), 155pc away, with…

astro-ph.EP2022★ 46 cited

The GAPS Programme with HARPS-N at TNG. XXXVII. A precise density measurement of the young ultra-short period planet TOI-1807 b

D. Nardiello, L. Malavolta, S. Desidera +38

Great strides have been made in recent years in the understanding of the mechanisms involved in the formation and evolution of planetary systems; despite this, many observational f…

astro-ph.EP2022★ 28 cited

The GAPS Programme at TNG XXXIII. HARPS-N detects multiple atomic species in emission from the dayside of KELT-20b

F. Borsa, P. Giacobbe, A. S. Bonomo +31

The detection of lines in emission in planetary atmospheres provides direct evidence of temperature inversion. We confirm the trend of ultra-hot Jupiters orbiting A-type stars show…

astro-ph.EP2022★ 53 cited

HADES RV Programme with HARPS-N at TNG XV. Planetary occurrence rates around early-M dwarfs

M. Pinamonti, A. Sozzetti, J. Maldonado +28

We present the complete Bayesian statistical analysis of the HArps-n red Dwarf Exoplanet Survey (HADES), which monitored the radial velocities of a large sample of M dwarfs with HA…

astro-ph.EP2022★ 42 cited

Investigating the architecture and internal structure of the TOI-561 system planets with CHEOPS, HARPS-N and TESS

G. Lacedelli, T. G. Wilson, L. Malavolta +115

We present a precise characterization of the TOI-561 planetary system obtained by combining previously published data with TESS and CHEOPS photometry, and a new set of HARPS-N…

astro-ph.EP2021★ 37 cited

The GAPS Programme at TNG. XXXII. The revealing non-detection of metastable HeI in the atmosphere of the hot Jupiter WASP-80b

L. Fossati, G. Guilluy, I. F. Shaikhislamov +38

The hot Jupiter WASP-80b has been identified as a possible excellent target for detecting and measuring HeI absorption in the upper atmosphere. We observed 4 primary transits of WA…

astro-ph.EP2021★ 27 cited

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

V. M. Rajpaul, L. A. Buchhave, G. Lacedelli +22

To date, only 18 exoplanets with radial velocity (RV) semi-amplitudes m/s have had their masses directly constrained. The biggest obstacle to RV detection of such exoplanets i…

astro-ph.EP2021★ 22 cited

The GAPS Programme with HARPS-N at TNG. XXXI. The WASP-33 system revisited with HARPS-N

F. Borsa, A. F. Lanza, I. Raspantini +33

[abridged] We analyse four transits of WASP-33b observed with the optical high-resolution HARPS-N spectrograph to confirm its nodal precession, study its atmosphere and investigate…

astro-ph.EP2021★ 18 cited

The GAPS Programme at TNG. XXIX. No detection of reflected light from 51 Peg b using optical high-resolution spectroscopy

G. Scandariato, F. Borsa, D. Sicilia +44

The analysis of exoplanetary atmospheres by means of high-resolution spectroscopy is an expanding research field which provides information on chemical composition, thermal structu…

astro-ph.EP2020★ 97 cited

Separating planetary reflex Doppler shifts from stellar variability in the wavelength domain

A. Collier Cameron, E. B. Ford, S. Shahaf +28

Stellar magnetic activity produces time-varying distortions in the photospheric line profiles of solar-type stars. These lead to systematic errors in high-precision radial-velocity…

astro-ph.EP2020★ 75 cited

The GAPS programme at TNG XXII. The GIARPS view of the extended helium atmosphere of HD189733 b accounting for stellar activity

G. Guilluy, V. Andretta, F. Borsa +48

Exoplanets orbiting very close to their host star are strongly irradiated. This can lead the upper atmospheric layers to expand and evaporate into space. The metastable helium (HeI…

astro-ph.EP2019★ 54 cited

HARPS-N radial velocities confirm the low densities of the Kepler-9 planets

L. Borsato, L. Malavolta, G. Piotto +20

We investigated the discrepancy between planetary mass determination using the transit timing variations (TTVs) and radial velocities (RVs), by analysing the multi-planet system Ke…

astro-ph.EP2018★ 31 cited

The GAPS Programme with HARPS-N at TNG XVII. Line profile indicators and kernel regression as diagnostics of radial-velocity variations due to stellar activity in solar-like stars

A. F. Lanza, L. Malavolta, S. Benatti +35

Stellar activity is the ultimate source of radial-velocity (RV) noise in the search for Earth-mass planets orbiting late-type main-sequence stars. We analyse the performance of fou…