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FältnamnIndikatorerMetadata
00009740naa a2201825 4500
001oai:DiVA.org:su-202776
003SwePub
008220314s2021 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2027762 URI
024a https://doi.org/10.1051/0004-6361/2020397532 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Langlois, M.4 aut
2451 0a The SPHERE infrared survey for exoplanets (SHINE) :b II. Observations, data reduction and analysis, detection performances, and initial results
264 c 2021-07-14
264 1b EDP Sciences,c 2021
338 a print2 rdacarrier
520 a Context. In recent decades, direct imaging has confirmed the existence of substellar companions (exoplanets or brown dwarfs) on wide orbits (>10 au) around their host stars. In striving to understand their formation and evolution mechanisms, in 2015 we initiated the SPHERE infrared survey for exoplanets (SHINE), a systematic direct imaging survey of young, nearby stars that is targeted at exploring their demographics.Aims. We aim to detect and characterize the population of giant planets and brown dwarfs beyond the snow line around young, nearby stars. Combined with the survey completeness, our observations offer the opportunity to constrain the statistical properties (occurrence, mass and orbital distributions, dependency on the stellar mass) of these young giant planets.Methods. In this study, we present the observing and data analysis strategy, the ranking process of the detected candidates, and the survey performances for a subsample of 150 stars that are representative of the full SHINE sample. Observations were conducted in a homogeneous way between February 2015 and February 2017 with the dedicated ground-based VLT/SPHERE instrument equipped with the IFS integral field spectrograph and the IRDIS dual-band imager, covering a spectral range between 0.9 and 2.3 μm. We used coronographic, angular, and spectral differential imaging techniques to achieve the best detection performances for this study, down to the planetary mass regime.Results. We processed, in a uniform manner, more than 300 SHINE observations and datasets to assess the survey typical sensitivity as a function of the host star and of the observing conditions. The median detection performance reached 5σ-contrasts of 13 mag at 200 mas and 14.2 mag at 800 mas with the IFS (YJ and YJH bands), and of 11.8 mag at 200 mas, 13.1 mag at 800 mas, and 15.8 mag at 3 as with IRDIS in H band, delivering one of the deepest sensitivity surveys thus far for young, nearby stars. A total of sixteen substellar companions were imaged in this first part of SHINE: seven brown dwarf companions and ten planetary-mass companions.These include two new discoveries, HIP 65426 b and HIP 64892 B, but not the planets around PDS70 that had not been originally selected for the SHINE core sample. A total of 1483 candidates were detected, mainly in the large field of view that characterizes IRDIS. The color-magnitude diagrams, low-resolution spectrum (when available with IFS), and follow-up observations enabled us to identify the nature (background contaminant or comoving companion) of about 86% of our subsample. The remaining cases are often connected to crowded-field follow-up observations that were missing. Finally, even though SHINE was not initially designed for disk searches, we imaged twelve circumstellar disks, including three new detections around the HIP 73145, HIP 86598, and HD 106906 systems.Conclusions. Nowadays, direct imaging provides a unique opportunity to probe the outer part of exoplanetary systems beyond 10 au to explore planetary architectures, as highlighted by the discoveries of: one new exoplanet, one new brown dwarf companion, and three new debris disks during this early phase of SHINE. It also offers the opportunity to explore and revisit the physical and orbital properties of these young, giant planets and brown dwarf companions (relative position, photometry, and low-resolution spectrum in near-infrared, predicted masses, and contrast in order to search for additional companions). Finally, these results highlight the importance of finalizing the SHINE systematic observation of about 500 young, nearby stars for a full exploration of their outer part to explore the demographics of young giant planets beyond 10 au and to identify the most interesting systems for the next generation of high-contrast imagers on very large and extremely large telescopes.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a methods: observational
653 a planets and satellites: detection
653 a techniques: image processing
653 a methods: statistical
653 a instrumentation: high angular resolution
653 a planets and satellites: formation
700a Gratton, R.4 aut
700a Lagrange, A.-M.4 aut
700a Delorme, P.4 aut
700a Boccaletti, A.4 aut
700a Bonnefoy, M.4 aut
700a Maire, A.-L.4 aut
700a Mesa, D.4 aut
700a Chauvin, G.4 aut
700a Desidera, S.4 aut
700a Vigan, A.4 aut
700a Cheetham, A.4 aut
700a Hagelberg, J.4 aut
700a Feldt, M.4 aut
700a Meyer, M.4 aut
700a Rubini, P.4 aut
700a Le Coroller, H.4 aut
700a Cantalloube, F.4 aut
700a Biller, B.4 aut
700a Bonavita, M.4 aut
700a Bhowmik, T.4 aut
700a Brandner, W.4 aut
700a Daemgen, S.4 aut
700a D'Orazi, V4 aut
700a Flasseur, O.4 aut
700a Fontanive, C.4 aut
700a Galicher, R.4 aut
700a Girard, J.4 aut
700a Janin-Potiron, P.4 aut
700a Janson, Markusu Stockholms universitet,Institutionen för astronomi,Max Planck Institute for Astronomy, Germany4 aut0 (Swepub:su)mjanso
700a Keppler, M.4 aut
700a Kopytova, T.4 aut
700a Lagadec, E.4 aut
700a Lannier, J.4 aut
700a Lazzoni, C.4 aut
700a Ligi, R.4 aut
700a Meunier, N.4 aut
700a Perreti, A.4 aut
700a Perrot, C.4 aut
700a Rodet, L.4 aut
700a Romero, C.4 aut
700a Rouan, D.4 aut
700a Samland, Matthiasu Stockholms universitet,Institutionen för astronomi,Max Planck Institute for Astronomy, Germany4 aut0 (Swepub:su)masa4294
700a Salter, G.4 aut
700a Sissa, E.4 aut
700a Schmidt, T.4 aut
700a Zurlo, A.4 aut
700a Mouillet, D.4 aut
700a Denis, L.4 aut
700a Thiebaut, E.4 aut
700a Milli, J.4 aut
700a Wahhaj, Z.4 aut
700a Beuzit, J.-L.4 aut
700a Dominik, C.4 aut
700a Henning, Th.4 aut
700a Menard, F.4 aut
700a Mueller, A.4 aut
700a Schmid, H. M.4 aut
700a Turatto, M.4 aut
700a Udry, S.4 aut
700a Abe, L.4 aut
700a Antichi, J.4 aut
700a Allard, F.4 aut
700a Baruffolo, A.4 aut
700a Baudoz, P.4 aut
700a Baudrand, J.4 aut
700a Bazzon, A.4 aut
700a Blanchard, P.4 aut
700a Carbillet, M.4 aut
700a Carle, M.4 aut
700a Cascone, E.4 aut
700a Charton, J.4 aut
700a Claudi, R.4 aut
700a Costille, A.4 aut
700a De Caprio, V.4 aut
700a Delboulbe, A.4 aut
700a Dohlen, K.4 aut
700a Fantinel, D.4 aut
700a Feautrier, P.4 aut
700a Fusco, T.4 aut
700a Gigan, P.4 aut
700a Giro, E.4 aut
700a Gisler, D.4 aut
700a Gluck, L.4 aut
700a Gry, C.4 aut
700a Hubin, N.4 aut
700a Hugot, E.4 aut
700a Jaquet, M.4 aut
700a Kasper, M.4 aut
700a Le Mignant, D.4 aut
700a Llored, M.4 aut
700a Madec, F.4 aut
700a Magnard, Y.4 aut
700a Martinez, P.4 aut
700a Maurel, D.4 aut
700a Messina, S.4 aut
700a Moller-Nilsson, O.4 aut
700a Mugnier, L.4 aut
700a Moulin, T.4 aut
700a Origne, A.4 aut
700a Pavlov, A.4 aut
700a Perret, D.4 aut
700a Petit, C.4 aut
700a Pragt, J.4 aut
700a Puget, P.4 aut
700a Rabou, P.4 aut
700a Ramos, J.4 aut
700a Rigal, F.4 aut
700a Rochat, S.4 aut
700a Roelfsema, R.4 aut
700a Rousset, G.4 aut
700a Roux, A.4 aut
700a Salasnich, B.4 aut
700a Sauvage, J.-F.4 aut
700a Sevin, A.4 aut
700a Soenke, C.4 aut
700a Stadler, E.4 aut
700a Suarez, M.4 aut
700a Weber, L.4 aut
700a Wildi, F.4 aut
700a Rickman, E.4 aut
710a Stockholms universitetb Institutionen för astronomi4 org
773t Astronomy and Astrophysicsd : EDP Sciencesg 651q 651x 0004-6361x 1432-0746
856u https://doi.org/10.1051/0004-6361/202039753y Fulltext
856u https://www.aanda.org/articles/aa/pdf/2021/07/aa39753-20.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-202776
8564 8u https://doi.org/10.1051/0004-6361/202039753

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Av författaren/redakt...
Langlois, M.
Gratton, R.
Lagrange, A.-M.
Delorme, P.
Boccaletti, A.
Bonnefoy, M.
visa fler...
Maire, A.-L.
Mesa, D.
Chauvin, G.
Desidera, S.
Vigan, A.
Cheetham, A.
Hagelberg, J.
Feldt, M.
Meyer, M.
Rubini, P.
Le Coroller, H.
Cantalloube, F.
Biller, B.
Bonavita, M.
Bhowmik, T.
Brandner, W.
Daemgen, S.
D'Orazi, V
Flasseur, O.
Fontanive, C.
Galicher, R.
Girard, J.
Janin-Potiron, P ...
Janson, Markus
Keppler, M.
Kopytova, T.
Lagadec, E.
Lannier, J.
Lazzoni, C.
Ligi, R.
Meunier, N.
Perreti, A.
Perrot, C.
Rodet, L.
Romero, C.
Rouan, D.
Samland, Matthia ...
Salter, G.
Sissa, E.
Schmidt, T.
Zurlo, A.
Mouillet, D.
Denis, L.
Thiebaut, E.
Milli, J.
Wahhaj, Z.
Beuzit, J.-L.
Dominik, C.
Henning, Th.
Menard, F.
Mueller, A.
Schmid, H. M.
Turatto, M.
Udry, S.
Abe, L.
Antichi, J.
Allard, F.
Baruffolo, A.
Baudoz, P.
Baudrand, J.
Bazzon, A.
Blanchard, P.
Carbillet, M.
Carle, M.
Cascone, E.
Charton, J.
Claudi, R.
Costille, A.
De Caprio, V.
Delboulbe, A.
Dohlen, K.
Fantinel, D.
Feautrier, P.
Fusco, T.
Gigan, P.
Giro, E.
Gisler, D.
Gluck, L.
Gry, C.
Hubin, N.
Hugot, E.
Jaquet, M.
Kasper, M.
Le Mignant, D.
Llored, M.
Madec, F.
Magnard, Y.
Martinez, P.
Maurel, D.
Messina, S.
Moller-Nilsson, ...
Mugnier, L.
Moulin, T.
Origne, A.
Pavlov, A.
Perret, D.
Petit, C.
Pragt, J.
Puget, P.
Rabou, P.
Ramos, J.
Rigal, F.
Rochat, S.
Roelfsema, R.
Rousset, G.
Roux, A.
Salasnich, B.
Sauvage, J.-F.
Sevin, A.
Soenke, C.
Stadler, E.
Suarez, M.
Weber, L.
Wildi, F.
Rickman, E.
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