Searching for the nature of stars with debris disks and planets
De La Reza, R. ; Chavero, C. ; Roca-Fàbrega, S. LU
; Llorente De Andrés, F.
; Cruz, P.
and Cifuentes, C.
(2023)
In Astronomy and Astrophysics
671.
- Abstract
The nature of the few known solar-mass stars simultaneously containing debris disks and planets remains an open question. A number of works have shown that this property appears to be independent of planetary masses as well as of stellar age, but possible correlations with stellar kinematics and metallicity have not been investigated. In this paper, we show that the majority of known stars containing both debris disks and planets belong to the metal-enriched Galactic thin disk. The few exceptions are stars that seem to be born in the star formation peak occurring in times of thick disk formation (i.e., HD 10700, HD 20794, and HD 40307), that is, between 11 and 8 Gyr. The mass of the dusty disk of these three old stars measured at 70 μm... (More)
The nature of the few known solar-mass stars simultaneously containing debris disks and planets remains an open question. A number of works have shown that this property appears to be independent of planetary masses as well as of stellar age, but possible correlations with stellar kinematics and metallicity have not been investigated. In this paper, we show that the majority of known stars containing both debris disks and planets belong to the metal-enriched Galactic thin disk. The few exceptions are stars that seem to be born in the star formation peak occurring in times of thick disk formation (i.e., HD 10700, HD 20794, and HD 40307), that is, between 11 and 8 Gyr. The mass of the dusty disk of these three old stars measured at 70 μm is very small - in fact, it is lower than that of the Kuiper belt of our Solar system by several orders of magnitude. These results are not surprising, as they remain within the values expected for the stellar disk evolution of such primitive stars. In parallel, we found another six thick-disk stars containing only debris disks or planets. These results enable us to establish a correlation between stellar metallicity and the mass of the dust disk modulated by the different formation epochs of the thick and thin Galactic disks.
(Less)
- author
- De La Reza, R.
; Chavero, C.
; Roca-Fàbrega, S.
LU
; Llorente De Andrés, F.
; Cruz, P.
and Cifuentes, C.
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Galaxy: abundances, Galaxy: disk, Planetary systems, Stars: abundances, Stars: solar-type
- in
- Astronomy and Astrophysics
- volume
- 671
- article number
- A136
- publisher
- EDP Sciences
- external identifiers
-
- scopus:85151528705
- ISSN
- 0004-6361
- DOI
- 10.1051/0004-6361/202245222
- language
- English
- LU publication?
- yes
- id
- a5b9cb14-2b1f-42fb-9bdf-eda8f6c43a33
- date added to LUP
- 2023-05-23 11:29:52
- date last changed
- 2023-05-23 11:29:52
@article{a5b9cb14-2b1f-42fb-9bdf-eda8f6c43a33,
abstract = {{<p>The nature of the few known solar-mass stars simultaneously containing debris disks and planets remains an open question. A number of works have shown that this property appears to be independent of planetary masses as well as of stellar age, but possible correlations with stellar kinematics and metallicity have not been investigated. In this paper, we show that the majority of known stars containing both debris disks and planets belong to the metal-enriched Galactic thin disk. The few exceptions are stars that seem to be born in the star formation peak occurring in times of thick disk formation (i.e., HD 10700, HD 20794, and HD 40307), that is, between 11 and 8 Gyr. The mass of the dusty disk of these three old stars measured at 70 μm is very small - in fact, it is lower than that of the Kuiper belt of our Solar system by several orders of magnitude. These results are not surprising, as they remain within the values expected for the stellar disk evolution of such primitive stars. In parallel, we found another six thick-disk stars containing only debris disks or planets. These results enable us to establish a correlation between stellar metallicity and the mass of the dust disk modulated by the different formation epochs of the thick and thin Galactic disks.</p>}},
author = {{De La Reza, R. and Chavero, C. and Roca-Fàbrega, S. and Llorente De Andrés, F. and Cruz, P. and Cifuentes, C.}},
issn = {{0004-6361}},
keywords = {{Galaxy: abundances; Galaxy: disk; Planetary systems; Stars: abundances; Stars: solar-type}},
language = {{eng}},
publisher = {{EDP Sciences}},
series = {{Astronomy and Astrophysics}},
title = {{Searching for the nature of stars with debris disks and planets}},
url = {{http://dx.doi.org/10.1051/0004-6361/202245222}},
doi = {{10.1051/0004-6361/202245222}},
volume = {{671}},
year = {{2023}},
}