University of Hertfordshire

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From the same journal

By the same authors

Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images

Research output: Contribution to journalArticlepeer-review

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Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images. / Beamin, J.C.; Minniti, D.; Pullen, J. B.; Ivanov, Valentin D.; Bendek, E.; Bayo, A.; Gromadzki, M.; Kurtev, R.; Lucas, P. W.; Butler, R. P. .

In: Monthly Notices of the Royal Astronomical Society, Vol. 472, No. 4, 21.12.2017, p. 3952-3958.

Research output: Contribution to journalArticlepeer-review

Harvard

Beamin, JC, Minniti, D, Pullen, JB, Ivanov, VD, Bendek, E, Bayo, A, Gromadzki, M, Kurtev, R, Lucas, PW & Butler, RP 2017, 'Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images', Monthly Notices of the Royal Astronomical Society, vol. 472, no. 4, pp. 3952-3958. https://doi.org/10.1093/mnras/stx2144

APA

Beamin, J. C., Minniti, D., Pullen, J. B., Ivanov, V. D., Bendek, E., Bayo, A., Gromadzki, M., Kurtev, R., Lucas, P. W., & Butler, R. P. (2017). Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images. Monthly Notices of the Royal Astronomical Society, 472(4), 3952-3958. https://doi.org/10.1093/mnras/stx2144

Vancouver

Author

Beamin, J.C. ; Minniti, D. ; Pullen, J. B. ; Ivanov, Valentin D. ; Bendek, E. ; Bayo, A. ; Gromadzki, M. ; Kurtev, R. ; Lucas, P. W. ; Butler, R. P. . / Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images. In: Monthly Notices of the Royal Astronomical Society. 2017 ; Vol. 472, No. 4. pp. 3952-3958.

Bibtex

@article{92f54dc82af9420184e729f0dedc0750,
title = "Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images",
abstract = "The VVV survey has observed the southern disk of the Milky Way in the near infrared, covering 240 deg$^{2}$ in the $ZYJHK_S$ filters. We search the VVV Survey images in a $\sim$19 deg$^{2}$ field around $\alpha$ Centauri, the nearest stellar system to the Sun, to look for possible overlooked companions that the baseline in time of VVV would be able to uncover. The photometric depth of our search reaches $Y\sim$19.3 mag, $J\sim$19 mag, and $K_S\sim$17 mag. This search has yielded no new companions in $\alpha$ Centauri system, setting an upper mass limit for any unseen companion well into the brown dwarf/planetary mass regime. The apparent magnitude limits were turned into effective temperature limits, and the presence of companion objects with effective temperatures warmer than 325K can be ruled out using different state-of-the-art atmospheric models. These limits were transformed into mass limits using evolutionary models, companions with masses above 11 M$_{Jup}$ were discarded, extending the constraints recently provided in the literature up to projected distances of d",
keywords = "astro-ph.SR, astro-ph.EP",
author = "J.C. Beamin and D. Minniti and Pullen, {J. B.} and Ivanov, {Valentin D.} and E. Bendek and A. Bayo and M. Gromadzki and R. Kurtev and Lucas, {P. W.} and Butler, {R. P.}",
note = "This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. {\textcopyright} 2017 Crown Copyright. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. ",
year = "2017",
month = dec,
day = "21",
doi = "10.1093/mnras/stx2144",
language = "English",
volume = "472",
pages = "3952--3958",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images

AU - Beamin, J.C.

AU - Minniti, D.

AU - Pullen, J. B.

AU - Ivanov, Valentin D.

AU - Bendek, E.

AU - Bayo, A.

AU - Gromadzki, M.

AU - Kurtev, R.

AU - Lucas, P. W.

AU - Butler, R. P.

N1 - This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2017 Crown Copyright. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

PY - 2017/12/21

Y1 - 2017/12/21

N2 - The VVV survey has observed the southern disk of the Milky Way in the near infrared, covering 240 deg$^{2}$ in the $ZYJHK_S$ filters. We search the VVV Survey images in a $\sim$19 deg$^{2}$ field around $\alpha$ Centauri, the nearest stellar system to the Sun, to look for possible overlooked companions that the baseline in time of VVV would be able to uncover. The photometric depth of our search reaches $Y\sim$19.3 mag, $J\sim$19 mag, and $K_S\sim$17 mag. This search has yielded no new companions in $\alpha$ Centauri system, setting an upper mass limit for any unseen companion well into the brown dwarf/planetary mass regime. The apparent magnitude limits were turned into effective temperature limits, and the presence of companion objects with effective temperatures warmer than 325K can be ruled out using different state-of-the-art atmospheric models. These limits were transformed into mass limits using evolutionary models, companions with masses above 11 M$_{Jup}$ were discarded, extending the constraints recently provided in the literature up to projected distances of d

AB - The VVV survey has observed the southern disk of the Milky Way in the near infrared, covering 240 deg$^{2}$ in the $ZYJHK_S$ filters. We search the VVV Survey images in a $\sim$19 deg$^{2}$ field around $\alpha$ Centauri, the nearest stellar system to the Sun, to look for possible overlooked companions that the baseline in time of VVV would be able to uncover. The photometric depth of our search reaches $Y\sim$19.3 mag, $J\sim$19 mag, and $K_S\sim$17 mag. This search has yielded no new companions in $\alpha$ Centauri system, setting an upper mass limit for any unseen companion well into the brown dwarf/planetary mass regime. The apparent magnitude limits were turned into effective temperature limits, and the presence of companion objects with effective temperatures warmer than 325K can be ruled out using different state-of-the-art atmospheric models. These limits were transformed into mass limits using evolutionary models, companions with masses above 11 M$_{Jup}$ were discarded, extending the constraints recently provided in the literature up to projected distances of d

KW - astro-ph.SR

KW - astro-ph.EP

U2 - 10.1093/mnras/stx2144

DO - 10.1093/mnras/stx2144

M3 - Article

VL - 472

SP - 3952

EP - 3958

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -