Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/34917
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kiefer, F. | en_US |
dc.contributor.author | Van Grootel, V. | en_US |
dc.contributor.author | Lecavelier Des Etangs, A. | en_US |
dc.contributor.author | Szabó, G.M. | en_US |
dc.contributor.author | Brandeker, A. | en_US |
dc.contributor.author | Broeg, C. | en_US |
dc.contributor.author | Collier Cameron, A. | en_US |
dc.contributor.author | Deline, A. | en_US |
dc.contributor.author | Olofsson, G. | en_US |
dc.contributor.author | Wilson, T.G. | en_US |
dc.contributor.author | Sousa, S.G. | en_US |
dc.contributor.author | Gandolfi, D. | en_US |
dc.contributor.author | Hébrard, G. | en_US |
dc.contributor.author | Alibert, Y. | en_US |
dc.contributor.author | Alonso, R. | en_US |
dc.contributor.author | Anglada, G. | en_US |
dc.contributor.author | Bárczy, T. | en_US |
dc.contributor.author | Barrado, D. | en_US |
dc.contributor.author | Barros, S.C.C. | en_US |
dc.contributor.author | Baumjohann, W. | en_US |
dc.contributor.author | Beck, M. | en_US |
dc.contributor.author | Beck, T. | en_US |
dc.contributor.author | Benz, W. | en_US |
dc.contributor.author | Billot, N. | en_US |
dc.contributor.author | Bonfils, X. | en_US |
dc.contributor.author | Cabrera, J. | en_US |
dc.contributor.author | Charnoz, S. | en_US |
dc.contributor.author | Csizmadia, S. | en_US |
dc.contributor.author | Davies, M.B. | en_US |
dc.contributor.author | Deleuil, M. | en_US |
dc.contributor.author | Delrez, L. | en_US |
dc.contributor.author | Demangeon, O.D.S. | en_US |
dc.contributor.author | Demory, B.-O. | en_US |
dc.contributor.author | Ehrenreich, D. | en_US |
dc.contributor.author | Erikson, A. | en_US |
dc.contributor.author | Fortier, A. | en_US |
dc.contributor.author | Fossati, L. | en_US |
dc.contributor.author | Fridlund, M. | en_US |
dc.contributor.author | Gillon, M. | en_US |
dc.contributor.author | Güdel, M. | en_US |
dc.contributor.author | Heng, K. | en_US |
dc.contributor.author | Hoyer, S. | en_US |
dc.contributor.author | Isaak, K.G. | en_US |
dc.contributor.author | Kiss, L.L. | en_US |
dc.contributor.author | Laskar, J. | en_US |
dc.contributor.author | Lendl, M. | en_US |
dc.contributor.author | Lovis, C. | en_US |
dc.contributor.author | MAGRIN, DEMETRIO | en_US |
dc.contributor.author | Maxted, P.F.L. | en_US |
dc.contributor.author | MUNARI, MATTEO | en_US |
dc.contributor.author | NASCIMBENI, VALERIO | en_US |
dc.contributor.author | Ottensamer, R. | en_US |
dc.contributor.author | PAGANO, Isabella | en_US |
dc.contributor.author | Pallé, E. | en_US |
dc.contributor.author | Peter, G. | en_US |
dc.contributor.author | Piazza, D. | en_US |
dc.contributor.author | Piotto, G. | en_US |
dc.contributor.author | Pollacco, D. | en_US |
dc.contributor.author | Queloz, D. | en_US |
dc.contributor.author | RAGAZZONI, Roberto | en_US |
dc.contributor.author | Rando, N. | en_US |
dc.contributor.author | Ratti, F. | en_US |
dc.contributor.author | Rauer, H. | en_US |
dc.contributor.author | Reimers, C. | en_US |
dc.contributor.author | Ribas, I. | en_US |
dc.contributor.author | Santos, N.C. | en_US |
dc.contributor.author | SCANDARIATO, GAETANO | en_US |
dc.contributor.author | Ségransan, D. | en_US |
dc.contributor.author | Simon, A.E. | en_US |
dc.contributor.author | Smith, A.M.S. | en_US |
dc.contributor.author | Steller, M. | en_US |
dc.contributor.author | Thomas, N. | en_US |
dc.contributor.author | Udry, S. | en_US |
dc.contributor.author | Walter, I. | en_US |
dc.contributor.author | Walton, N.A. | en_US |
dc.date.accessioned | 2024-03-07T10:31:45Z | - |
dc.date.available | 2024-03-07T10:31:45Z | - |
dc.date.issued | 2023 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/34917 | - |
dc.description.abstract | HD 172555 is a young (∼20 Myr) A7V star surrounded by a 10 au wide debris disk suspected to be replenished partly by collisions between large planetesimals. Small evaporating transiting bodies, that is exocomets, have also been detected in this system by spectroscopy. After β Pictoris, this is another example of a system possibly witnessing a phase of the heavy bombardment of planetesimals. In such a system, small bodies trace dynamical evolution processes. We aim to constrain their dust content by using transit photometry. We performed a 2-day-long photometric monitoring of HD 172555 with the CHEOPS space telescope in order to detect shallow transits of exocomets with a typical expected duration of a few hours. The large oscillations in the light curve indicate that HD 172555 is a δ Scuti pulsating star. After removing those dominating oscillations, we found a hint of a transient absorption. If fitted with an exocomet transit model, it would correspond to an evaporating body passing near the star at a distance of 6.8±1.4R∗ (or 0.05±0.01 au) with a radius of 2.5 km. These properties are comparable to those of the exocomets already found in this system using spectroscopy, as well as those found in the β Pic system. The nuclei of the Solar System's Jupiter family comets, with radii of 2-6 km, are also comparable in size. This is the first piece of evidence of an exocomet photometric transit detection in the young system of HD 172555. | en_US |
dc.language.iso | eng | en_US |
dc.title | Hint of an exocomet transit in the CHEOPS light curve of HD 172555 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/202245104 | en_US |
dc.identifier.scopus | 2-s2.0-85149669984 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/full_html/2023/03/aa45104-22/aa45104-22.html | en_US |
dc.identifier.url | http://www.scopus.com/inward/record.url?eid=2-s2.0-85149669984&partnerID=MN8TOARS | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 671 | en_US |
dc.relation.firstpage | A25 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.orcid | 0000-0003-0312-313X | - |
crisitem.author.orcid | 0000-0003-0990-050X | - |
crisitem.author.orcid | 0000-0001-9770-1214 | - |
crisitem.author.orcid | 0000-0001-9573-4928 | - |
crisitem.author.orcid | 0000-0002-7697-5555 | - |
crisitem.author.orcid | 0000-0003-2029-0626 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
---|---|---|---|---|
aa45104-22.pdf | Pdf editoriale | 2.74 MB | Adobe PDF | View/Open |
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