Reference : ALMA Observations of Elias 2–24: A Protoplanetary Disk with Multiple Gaps in the Ophi...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/225416
ALMA Observations of Elias 2–24: A Protoplanetary Disk with Multiple Gaps in the Ophiuchus Molecular Cloud
English
Cieza, Lucas A. [Facultad de Ingeniería y Ciencias, Núcleo de Astronomía, Universidad Diego Portales, Av. Ejercito 441, Santiago, Chile ; Millennium Nucleus “Protoplanetary Disks in ALMA Early Science,” Av. Ejercito 441, Santiago, Chile <ID system="ORCID">0000-0002-2828-1153</ID>]
Casassus, Simon [Millennium Nucleus “Protoplanetary Disks in ALMA Early Science,” Av. Ejercito 441, Santiago, Chile ; Departamento de Astronomía, Universidad de Chile, Casilla 36-D Santiago, Chile <ID system="ORCID">0000-0002-0433-9840</ID>]
Pérez, Sebastian [Millennium Nucleus “Protoplanetary Disks in ALMA Early Science,” Av. Ejercito 441, Santiago, Chile ; Departamento de Astronomía, Universidad de Chile, Casilla 36-D Santiago, Chile <ID system="ORCID">0000-0003-2953-755X</ID>]
Hales, Antonio [Joint ALMA Observatory, Alonso de Cordova 3107, Vitacura 763-0355, Santiago, Chile ; National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903-2475, USA <ID system="ORCID">0000-0001-5073-2849</ID>]
Cárcamo, Miguel [Departamento de Ingeniería Informática, Universidad de Santiago de Chile, Av. Ecuador 3659, Santiago, Chile]
Ansdell, Megan [Department of Astronomy, University of California at Berkeley, Berkeley, CA 94720-3411, USA <ID system="ORCID">0000-0003-4142-9842</ID>]
Avenhaus, Henning [ETH Zurich, Institute for Particle Physics and Astrophysics, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland]
Bayo, Amelia [Facultad de Ciencias, Instituto de Física y Astronomía, Universidad de Valparaíso, Av. Gran Bretaña 1111, 5030 Casilla, Valparaíso, Chile ; Millennium Nucleus for Planet Formation, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaíso, Chile <ID system="ORCID">0000-0001-7868-7031</ID>]
Bertrang, Gesa H.-M. [Millennium Nucleus “Protoplanetary Disks in ALMA Early Science,” Av. Ejercito 441, Santiago, Chile ; Departamento de Astronomía, Universidad de Chile, Casilla 36-D Santiago, Chile]
Cánovas, Hector [European Space Astronomy Centre (ESA), Camino Bajo del Castillo s/n, E-28692, Villanueva de la Cañada, Madrid, Spain <ID system="ORCID">0000-0001-7668-8022</ID>]
Christiaens, Valentin mailto [Université de Liège - ULiège > > > Form. doct. sc. (sc. spatiales - paysage)]
Dent, William [Joint ALMA Observatory, Alonso de Cordova 3107, Vitacura 763-0355, Santiago, Chile]
Ferrero, Gabriel [Instituto de Astrofísica de La Plata y Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, La Plata, Argentina]
Gamen, Roberto [Instituto de Astrofísica de La Plata y Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, La Plata, Argentina]
Olofsson, Johan [Facultad de Ciencias, Instituto de Física y Astronomía, Universidad de Valparaíso, Av. Gran Bretaña 1111, 5030 Casilla, Valparaíso, Chile ; Millennium Nucleus for Planet Formation, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaíso, Chile <ID system="ORCID">0000-0003-4475-3605</ID>]
Orcajo, Santiago [Instituto de Astrofísica de La Plata y Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, La Plata, Argentina]
Osses, Axel [El Departamento de Ingeniería Matemática, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago, Chile]
Peña-Ramirez, Karla [Unidad de Astronomía de la Universidad de Antofagasta, Av. U. de Antofagasta, 02800 Antofagasta, Chile]
Principe, David [Massachusetts Institute of Technology, Kavli Institute for Astrophysics, Cambridge, MA, USA]
Ruíz-Rodríguez, Dary [Chester F. Carlson Center for Imaging Science, Rochester Institute of Technology, Rochester, NY 14623-5603, USA <ID system="ORCID">0000-0003-3573-8163</ID>]
Schreiber, Matthias R. [Facultad de Ciencias, Instituto de Física y Astronomía, Universidad de Valparaíso, Av. Gran Bretaña 1111, 5030 Casilla, Valparaíso, Chile ; Millennium Nucleus for Planet Formation, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaíso, Chile]
van der Plas, Gerrit [Univ. Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France]
Williams, Jonathan P. [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822, USA <ID system="ORCID">0000-0001-5058-695X</ID>]
Zurlo, Alice [Facultad de Ingeniería y Ciencias, Núcleo de Astronomía, Universidad Diego Portales, Av. Ejercito 441, Santiago, Chile ; Millennium Nucleus “Protoplanetary Disks in ALMA Early Science,” Av. Ejercito 441, Santiago, Chile <ID system="ORCID">0000-0002-5903-8316</ID>)]
1-Dec-2017
Astrophysical Journal Letters
IOP Publishing
851
Yes (verified by ORBi)
International
2041-8205
2041-8213
Bristol
United Kingdom
[en] circumstellar matter ; planetary systems ; protoplanetary disks ; stars: individual: Elias 2–24 ; techniques: interferometric
[en] We present ALMA 1.3 mm continuum observations at 0\buildrel{\prime\prime}\over{.} 2 (25 au) resolution of Elias 2–24, one of the largest and brightest protoplanetary disks in the Ophiuchus Molecular Cloud, and we report the presence of three partially resolved concentric gaps located at ∼20, 52, and 87 au from the star. We perform radiative transfer modeling of the disk to constrain its surface density and temperature radial profile and place the disk structure in the context of mechanisms capable of forming narrow gaps such as condensation fronts and dynamical clearing by actively forming planets. In particular, we estimate the disk temperature at the locations of the gaps to be 23, 15, and 12 K (at 20, 52, and 87 au, respectively), very close to the expected snowlines of CO (23–28 K) and N[SUB]2[/SUB] (12–15 K). Similarly, by assuming that the widths of the gaps correspond to 4–8× the Hill radii of forming planets (as suggested by numerical simulations), we estimate planet masses in the range of 0.2{--}1.5 {M}[SUB]{Jup[/SUB]}, 1.0{--}8.0 {M}[SUB]{Jup[/SUB]}, and 0.02{--}0.15 {M}[SUB]{Jup[/SUB]} for the inner, middle, and outer gap, respectively. Given the surface density profile of the disk, the amount of “missing mass” at the location of each one of these gaps (between 4 and 20 {M}[SUB]{Jup[/SUB]}) is more than sufficient to account for the formation of such planets.
http://hdl.handle.net/2268/225416
10.3847/2041-8213/aa9b7b
http://cdsads.u-strasbg.fr/abs/2017ApJ...851L..23C

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Cieza2017-Elias2-24 annuli - ARXIV version-1711.06905.pdfAuthor postprint843.28 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.