Skip to content

Research at St Andrews

Demographics of disks around young very low-mass stars and brown dwarfs in Lupus

Research output: Contribution to journalArticle

Standard

Demographics of disks around young very low-mass stars and brown dwarfs in Lupus. / Sanchis, E.; Testi, L.; Natta, A.; Manara, C. F.; Ercolano, B.; Preibisch, T.; Henning, T.; Facchini, S.; Miotello, A.; de Gregorio-Monsalvo, I.; Lopez, C.; Mužić, K.; Pascucci, I.; Santamaría-Miranda, A.; Scholz, A.; Tazzari, M.; van Terwisga, S.; Williams, J. P.

In: Astronomy & Astrophysics, Vol. 633, A114, 01.2020.

Research output: Contribution to journalArticle

Harvard

Sanchis, E, Testi, L, Natta, A, Manara, CF, Ercolano, B, Preibisch, T, Henning, T, Facchini, S, Miotello, A, de Gregorio-Monsalvo, I, Lopez, C, Mužić, K, Pascucci, I, Santamaría-Miranda, A, Scholz, A, Tazzari, M, van Terwisga, S & Williams, JP 2020, 'Demographics of disks around young very low-mass stars and brown dwarfs in Lupus', Astronomy & Astrophysics, vol. 633, A114. https://doi.org/10.1051/0004-6361/201936913

APA

Sanchis, E., Testi, L., Natta, A., Manara, C. F., Ercolano, B., Preibisch, T., Henning, T., Facchini, S., Miotello, A., de Gregorio-Monsalvo, I., Lopez, C., Mužić, K., Pascucci, I., Santamaría-Miranda, A., Scholz, A., Tazzari, M., van Terwisga, S., & Williams, J. P. (2020). Demographics of disks around young very low-mass stars and brown dwarfs in Lupus. Astronomy & Astrophysics, 633, [A114]. https://doi.org/10.1051/0004-6361/201936913

Vancouver

Sanchis E, Testi L, Natta A, Manara CF, Ercolano B, Preibisch T et al. Demographics of disks around young very low-mass stars and brown dwarfs in Lupus. Astronomy & Astrophysics. 2020 Jan;633. A114. https://doi.org/10.1051/0004-6361/201936913

Author

Sanchis, E. ; Testi, L. ; Natta, A. ; Manara, C. F. ; Ercolano, B. ; Preibisch, T. ; Henning, T. ; Facchini, S. ; Miotello, A. ; de Gregorio-Monsalvo, I. ; Lopez, C. ; Mužić, K. ; Pascucci, I. ; Santamaría-Miranda, A. ; Scholz, A. ; Tazzari, M. ; van Terwisga, S. ; Williams, J. P. / Demographics of disks around young very low-mass stars and brown dwarfs in Lupus. In: Astronomy & Astrophysics. 2020 ; Vol. 633.

Bibtex - Download

@article{2e9531c7b79e4c70bb95a687585d4c97,
title = "Demographics of disks around young very low-mass stars and brown dwarfs in Lupus",
abstract = "We present new 890 μm continuum ALMA observations of five brown dwarfs (BDs) with infrared excess in Lupus I and III, which in combination with four previously observed BDs allowed us to study the millimeter properties of the full known BD disk population of onestar-forming region. Emission is detected in five out of the nine BD disks. Dust disk mass, brightness profiles, and characteristic sizes ofthe BD population are inferred from continuum flux and modeling of the observations. Only one source is marginally resolved, allowing for the determination of its disk characteristic size. We conduct a demographic comparison between the properties of disks around BDs and stars in Lupus. Due to the small sample size, we cannot confirm or disprove a drop in the disk mass over stellar mass ratio for BDs, as suggested for Ophiuchus. Nevertheless, we find that all detected BD disks have an estimated dust mass between 0.2 and 3.2 M⊙; these results suggest that the measured solid masses in BD disks cannot explain the observed exoplanet population, analogous to earlier findings on disks around more massive stars. Combined with the low estimated accretion rates, and assuming that the mm-continuum emission is a reliable proxy for the total disk mass, we derive ratios of Ṁacc/Mdisk that are significantly lower than in disks around more massive stars. If confirmed with more accurate measurements of disk gas masses, this result could imply a qualitatively different relationship between disk masses and inward gas transport in BD disks.",
keywords = "Planets and satellites: formation, Brown dwarfs, Stars: pre-main sequence",
author = "E. Sanchis and L. Testi and A. Natta and Manara, {C. F.} and B. Ercolano and T. Preibisch and T. Henning and S. Facchini and A. Miotello and {de Gregorio-Monsalvo}, I. and C. Lopez and K. Mu{\v z}i{\'c} and I. Pascucci and A. Santamar{\'i}a-Miranda and A. Scholz and M. Tazzari and {van Terwisga}, S. and Williams, {J. P.}",
note = "Funding: This work was partly supported by the Italian Ministero dell Istruzione, Universit{\`a} e Ricerca through the grant Progetti Premiali 2012 – iALMA (CUP C52I13000140001), by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Ref no. FOR2634/1TE1024/1-1, and by the DFG cluster of excellence Origins (www.origins-cluster.de), and by the European Union{\textquoteright}s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No 823823 (RISE DUSTBUSTERS project). T.H. acknowledges support from the European Research Council under the Horizon 2020 Framework Program via the ERC Advanced Grant Origins 83 24 28. KM acknowledges funding by the Science and Technology Foundation of Portugal (FCT), grants No. IF/00194/2015 and PTDC/FISAST/28731/2017. CM, SF, AM acknowledge an ESO Fellowship. M.T. has been supported by the UK Science and Technology research Council (STFC).",
year = "2020",
month = jan,
doi = "10.1051/0004-6361/201936913",
language = "English",
volume = "633",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "EDP SCIENCES S A",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Demographics of disks around young very low-mass stars and brown dwarfs in Lupus

AU - Sanchis, E.

AU - Testi, L.

AU - Natta, A.

AU - Manara, C. F.

AU - Ercolano, B.

AU - Preibisch, T.

AU - Henning, T.

AU - Facchini, S.

AU - Miotello, A.

AU - de Gregorio-Monsalvo, I.

AU - Lopez, C.

AU - Mužić, K.

AU - Pascucci, I.

AU - Santamaría-Miranda, A.

AU - Scholz, A.

AU - Tazzari, M.

AU - van Terwisga, S.

AU - Williams, J. P.

N1 - Funding: This work was partly supported by the Italian Ministero dell Istruzione, Università e Ricerca through the grant Progetti Premiali 2012 – iALMA (CUP C52I13000140001), by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Ref no. FOR2634/1TE1024/1-1, and by the DFG cluster of excellence Origins (www.origins-cluster.de), and by the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No 823823 (RISE DUSTBUSTERS project). T.H. acknowledges support from the European Research Council under the Horizon 2020 Framework Program via the ERC Advanced Grant Origins 83 24 28. KM acknowledges funding by the Science and Technology Foundation of Portugal (FCT), grants No. IF/00194/2015 and PTDC/FISAST/28731/2017. CM, SF, AM acknowledge an ESO Fellowship. M.T. has been supported by the UK Science and Technology research Council (STFC).

PY - 2020/1

Y1 - 2020/1

N2 - We present new 890 μm continuum ALMA observations of five brown dwarfs (BDs) with infrared excess in Lupus I and III, which in combination with four previously observed BDs allowed us to study the millimeter properties of the full known BD disk population of onestar-forming region. Emission is detected in five out of the nine BD disks. Dust disk mass, brightness profiles, and characteristic sizes ofthe BD population are inferred from continuum flux and modeling of the observations. Only one source is marginally resolved, allowing for the determination of its disk characteristic size. We conduct a demographic comparison between the properties of disks around BDs and stars in Lupus. Due to the small sample size, we cannot confirm or disprove a drop in the disk mass over stellar mass ratio for BDs, as suggested for Ophiuchus. Nevertheless, we find that all detected BD disks have an estimated dust mass between 0.2 and 3.2 M⊙; these results suggest that the measured solid masses in BD disks cannot explain the observed exoplanet population, analogous to earlier findings on disks around more massive stars. Combined with the low estimated accretion rates, and assuming that the mm-continuum emission is a reliable proxy for the total disk mass, we derive ratios of Ṁacc/Mdisk that are significantly lower than in disks around more massive stars. If confirmed with more accurate measurements of disk gas masses, this result could imply a qualitatively different relationship between disk masses and inward gas transport in BD disks.

AB - We present new 890 μm continuum ALMA observations of five brown dwarfs (BDs) with infrared excess in Lupus I and III, which in combination with four previously observed BDs allowed us to study the millimeter properties of the full known BD disk population of onestar-forming region. Emission is detected in five out of the nine BD disks. Dust disk mass, brightness profiles, and characteristic sizes ofthe BD population are inferred from continuum flux and modeling of the observations. Only one source is marginally resolved, allowing for the determination of its disk characteristic size. We conduct a demographic comparison between the properties of disks around BDs and stars in Lupus. Due to the small sample size, we cannot confirm or disprove a drop in the disk mass over stellar mass ratio for BDs, as suggested for Ophiuchus. Nevertheless, we find that all detected BD disks have an estimated dust mass between 0.2 and 3.2 M⊙; these results suggest that the measured solid masses in BD disks cannot explain the observed exoplanet population, analogous to earlier findings on disks around more massive stars. Combined with the low estimated accretion rates, and assuming that the mm-continuum emission is a reliable proxy for the total disk mass, we derive ratios of Ṁacc/Mdisk that are significantly lower than in disks around more massive stars. If confirmed with more accurate measurements of disk gas masses, this result could imply a qualitatively different relationship between disk masses and inward gas transport in BD disks.

KW - Planets and satellites: formation

KW - Brown dwarfs

KW - Stars: pre-main sequence

U2 - 10.1051/0004-6361/201936913

DO - 10.1051/0004-6361/201936913

M3 - Article

VL - 633

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A114

ER -

Related by author

  1. Large-scale changes of the cloud coverage in the ɛ Indi Ba,Bb system

    Hitchcock, J. A., Helling, C., Scholz, A., Hodosan, G., Dominik, M., Hundertmark, M., Jørgensen, U. G., Longa-Peña, P., Sajadian, S., Skottfelt, J., Snodgrass, C., Bozza, V., Burgdorf, M. J., Campbell-White, J., Figuera Jaimes, R., Fujii, Y. I., Haikala, L. K., Henning, T., Hinse, T. C., Lowry, S. & 5 others, Mancini, L., Rahvar, S., Rabus, M., Southworth, J. & von Essen, C., Jul 2020, In : Monthly Notices of the Royal Astronomical Society. 495, 4, p. 3881-3999 19 p.

    Research output: Contribution to journalArticle

  2. The relationship between mid-infrared and sub-millimetre variability of deeply embedded protostars

    Contreras Peña, C., Johnstone, D., Baek, G., Herczeg, G. J., Mairs, S., Scholz, A., Lee, J-E. & The JCMT Transient Team, Jul 2020, In : Monthly Notices of the Royal Astronomical Society. 495, 4, p. 3614–3635

    Research output: Contribution to journalArticle

  3. The rotation–activity relation of M dwarfs: from K2 to TESS and PLATO

    Raetz, S., Stelzer, B. & Scholz, A., 25 Jun 2020, In : Astronomische Nachrichten. Early View

    Research output: Contribution to journalArticle

  4. Rotation-activity relations and flares of M dwarfs with K2 long- and short-cadence data

    Raetz, S., Stelzer, B., Damasso, M. & Scholz, A., May 2020, In : Astronomy & Astrophysics. 637, 20 p., A22.

    Research output: Contribution to journalArticle

  5. A survey for variable young stars with small telescopes: II - mapping a protoplanetary disc with stable structures at 0.15 au

    Evitts, J. J., Froebrich, D., Scholz, A., Eisloeffel, J., Campbell-White, J., Furnell, W., Stecklum, B., Urtly, T., Pickard, R., Wiersema, K., Dubovsky, P. A., Kudzej, I., Naves, R., Morales Aimar, M., Castillo Garcia, R., Vanmunster, T., Schwendeman, E., Soldan Alfaro, F. C., Johnstone, S., Gonzalez Farfan, R. & 40 others, Killestein, T., DelgadoCasal, J., Garcia de la Cuesta, F., Roberts, D., Kolb, U., Montoro, L., Licchelli, D., Escartin Perez, A., Perello Perez, C., Deldem, M., Futcher, S. R. L., Nelson, T., Dvorak, S., Mozdzierski, D., Quinn, N., Kotysz, K., Kowalska, K., Mikolajczyk, P., Fleming, G., Phillips, M., Vale, T., Dubois, F., Logie, L., Rau, S., Vanaverbeke, S., Merrikin, B., Fernandez Mananes, E., Erdelyi, E., Gonzalez Carballo, J-L., Limon Martinez, F., Long, T. P., San Segundo Delgado, A., Salto Gonzalez, J. L., Tremosa Espasa, L., Piehler, G., Crumpton, J., Billington, S. J., D'Arcy, E., Makin, S. & Dover, L., Mar 2020, In : Monthly Notices of the Royal Astronomical Society. 493, 1, p. 184-198 15 p.

    Research output: Contribution to journalArticle

Related by journal

  1. An ultra-short period rocky super-Earth orbiting the G2-star HD 80653

    Frustagli, G., Poretti, E., Milbourne, T., Malavolta, L., Mortier, A., Singh, V., Bonomo, A. S., Buchhave, L. A., Zeng, L., Vanderburg, A., Udry, S., Andreuzzi, G., Collier-Cameron, A., Cosentino, R., Damasso, M., Ghedina, A., Harutyunyan, A., Haywood, R. D., Latham, D. W., López-Morales, M. & 9 others, Lorenzi, V., Martinez Fiorenzano, A. F., Mayor, M., Micela, G., Molinari, E., Pepe, F., Phillips, D., Rice, K. & Sozzetti, A., Jan 2020, In : Astronomy & Astrophysics. 633, 11 p., A133.

    Research output: Contribution to journalArticle

  2. Chromospheric evaporation and phase mixing of Alfvén waves in coronal loops

    Van Damme, H. J., De Moortel, I., Pagano, P. & Johnston, C. D., 31 Mar 2020, In : Astronomy and Astrophysics. 635, 11 p., A174.

    Research output: Contribution to journalArticle

  3. Chromospheric evaporation and phasemixing of Alfvén waves in coronal loops

    Van Damme, H-J., De Moortel, I., Pagano, P. & Johnston, C. D., 14 Feb 2020, (Accepted/In press) In : Astronomy & Astrophysics.

    Research output: Contribution to journalArticle

  4. Coronal energy release by MHD avalanches: heating mechanisms

    Reid, J., Cargill, P., Hood, A. W., Parnell, C. E. & Arber, T. D., Jan 2020, In : Astronomy & Astrophysics. 633, 16 p., A158.

    Research output: Contribution to journalArticle

Related by journal

  1. Astronomy & Astrophysics (Journal)

    Duncan Hendry Mackay (Editor)

    2004 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  2. Astronomy & Astrophysics (Journal)

    Christiane Helling (Editor)

    2000 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  3. Astronomy & Astrophysics (Journal)

    Alan William Hood (Editor)

    1980 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

ID: 268130719

Top