The newborn planet population emerging from ring-like structures in discs
Lodato, Giuseppe1; Dipierro, Giovanni2; Ragusa, Enrico1,2; Long, Feng3; Herczeg, Gregory J.3; Pascucci, Ilaria4,5; Pinilla, Paola6; Manara, Carlo F.7; Tazzari, Marco8; Liu, Yao9,10,11; Mulders, Gijs D.5,12; Harsono, Daniel13; Boehler, Yann14; Menard, Francois14; Johnstone, Doug15,16; Salyk, Colette17; van der Plas, Gerrit14; Cabrit, Sylvie18; Edwards, Suzan19; Fischer, William J.20; Hendler, Nathan4; Nisini, Brunella21; Rigliaco, Elisabetta22; Avenhaus, Henning9; Banzatti, Andrea4; Gully-Santiago, Michael23,24

ALMA has observed a plethora of ring-like structures in planet-forming discs at distances of 10-100 au from their host star. Although several mechanisms have been invoked to explain the origin of such rings, a common explanation is that they trace new-born planets. Under the planetary hypothesis, a natural question is how to reconcile the apparently high frequency of gap-carving planets at 10-100 au with the paucity of Jupiter-mass planets observed around main-sequence stars at those separations. Here, we provide an analysis of the new-born planet population emerging from observations of gaps in discs, under the assumption that the observed gaps are due to planets. We use a simple estimate of the planet mass based on the gap morphology, and apply it to a sample of gaps recently obtained by us in a survey of Taurus with ALMA. We also include additional data from recent published surveys, thus analysing the largest gap sample to date, for a total of 48 gaps. The properties of the purported planets occupy a distinctively different region of parameter space with respect to the known exo-planet population, currently not accessible through planet finding methods. Thus, no discrepancy in the mass and radius distribution of the two populations can be claimed at this stage. We show that the mass of the inferred planets conforms to the theoretically expected trend for the minimum planet mass needed to carve a dust gap. Finally, we estimate the separation and mass of the putative planets after accounting for migration and accretion, for a range of evolutionary times, finding a good match with the distribution of cold Jupiters.

Keywordaccretion, accretion discs planets and satellites: formation protoplanetary discs
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000474894100037
Citation statistics
Document Type期刊论文
Corresponding AuthorLodato, Giuseppe
Affiliation1.Univ Milan, Dipartimento Fis, Via Celoria 16, I-20133 Milan, Italy
2.Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
3.Peking Univ, Kavli Inst Astron & Astrophys, Yiheyuan 5, Beijing 100871, Peoples R China
4.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA
5.NASA, Earths Other Solar Syst Team, Nexus Exoplanet Syst Sci, Washington, DC 20546 USA
6.Univ Arizona, Steward Observ, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA
7.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
8.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
9.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
10.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Peoples R China
11.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Peoples R China
12.Univ Chicago, Dept Geophys Sci, 5734 S Ellis Ave, Chicago, IL 60637 USA
13.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
14.Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
15.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
16.Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada
17.Vassar Coll, Dept Phys & Astron, 124 Raymond Ave, Poughkeepsie, NY 12604 USA
18.Sorbonne Univ, Observ Paris, Univ PSL, CNRS,LERMA, F-75014 Paris, France
19.Smith Coll, Five Coll Astron Dept, Northampton, MA 01063 USA
20.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
21.INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy
22.INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
23.NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
24.Bay Area Environm Res Inst, Moffett Field, CA 94035 USA
Recommended Citation
GB/T 7714
Lodato, Giuseppe,Dipierro, Giovanni,Ragusa, Enrico,et al. The newborn planet population emerging from ring-like structures in discs[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,486(1):453-461.
APA Lodato, Giuseppe.,Dipierro, Giovanni.,Ragusa, Enrico.,Long, Feng.,Herczeg, Gregory J..,...&Gully-Santiago, Michael.(2019).The newborn planet population emerging from ring-like structures in discs.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,486(1),453-461.
MLA Lodato, Giuseppe,et al."The newborn planet population emerging from ring-like structures in discs".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 486.1(2019):453-461.
Files in This Item:
File Name/Size DocType Version Access License
2019-059.pdf(895KB)期刊论文作者接受稿限制开放CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lodato, Giuseppe]'s Articles
[Dipierro, Giovanni]'s Articles
[Ragusa, Enrico]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lodato, Giuseppe]'s Articles
[Dipierro, Giovanni]'s Articles
[Ragusa, Enrico]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lodato, Giuseppe]'s Articles
[Dipierro, Giovanni]'s Articles
[Ragusa, Enrico]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2019-059.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.