Andromeda X, a new dwarf spheroidal satellite of M31: photometry

Daniel B. Zucker; Alexei Y. Kniazev; David Martínez-Delgado; Eric F. Bell; Hans Walter Rix; Eva K. Grebel; Jon A. Holtzman; Rene A M Walterbos; Constance M. Rockosi; Donald G. York; J. C. Barentine; Howard Brewington; J. Brinkmann; Michael Harvanek; S. J. Kleinman; Jurek Krzesinski; Dan Long; Eric H. Neilsen; Atsuko Nitta; Stephanie A. Snedden

doi:10.1086/516748

Andromeda X, a new dwarf spheroidal satellite of M31: photometry

Daniel B. Zucker^*, Alexei Y. Kniazev, David Martínez-Delgado, Eric F. Bell, Hans Walter Rix, Eva K. Grebel, Jon A. Holtzman, Rene A M Walterbos, Constance M. Rockosi, Donald G. York, J. C. Barentine, Howard Brewington, J. Brinkmann, Michael Harvanek, S. J. Kleinman, Jurek Krzesinski, Dan Long, Eric H. Neilsen, Atsuko Nitta, Stephanie A. Snedden

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We report the discovery of Andromeda X, a new dwarf spheroidal satellite of M31, based on stellar photometry from the Sloan Digital Sky Survey. Using follow-up imaging data we have estimated its distance and other physical properties. We find that Andromeda X has a dereddened central surface brightness of μ_{v, 0} ∼ 26.7 mag arcsec^-2 and a total apparent magnitude of V_tot ∼ 16.1, which at the derived distance modulus, (m - M)₀ ∼ 24.12-24.34, yields an absolute magnitude of M _v ∼ -8.1 ± 0.5; these values are quite comparable to those of Andromeda IX, a previously discovered low-luminosity M31 satellite. The discoveries of Andromeda X and of numerous other extremely faint satellites around M31 and the Milky Way in the past few years suggest that such objects may be plentiful in the Local Group.

Original language	English
Pages (from-to)	L21-L24
Number of pages	4
Journal	The Astrophysical Journal
Volume	659
Issue number	1
DOIs	https://doi.org/10.1086/516748
Publication status	Published - 10 Apr 2007
Externally published	Yes

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Zucker, D. B., Kniazev, A. Y., Martínez-Delgado, D., Bell, E. F., Rix, H. W., Grebel, E. K., Holtzman, J. A., Walterbos, R. A. M., Rockosi, C. M., York, D. G., Barentine, J. C., Brewington, H., Brinkmann, J., Harvanek, M., Kleinman, S. J., Krzesinski, J., Long, D., Neilsen, E. H., Nitta, A., & Snedden, S. A. (2007). Andromeda X, a new dwarf spheroidal satellite of M31: photometry. The Astrophysical Journal, 659(1), L21-L24. https://doi.org/10.1086/516748

@article{83f77946085240f1a0a5f7d932ce7ec1,

title = "Andromeda X, a new dwarf spheroidal satellite of M31: photometry",

abstract = "We report the discovery of Andromeda X, a new dwarf spheroidal satellite of M31, based on stellar photometry from the Sloan Digital Sky Survey. Using follow-up imaging data we have estimated its distance and other physical properties. We find that Andromeda X has a dereddened central surface brightness of μv, 0 ∼ 26.7 mag arcsec-2 and a total apparent magnitude of Vtot ∼ 16.1, which at the derived distance modulus, (m - M)0 ∼ 24.12-24.34, yields an absolute magnitude of M v ∼ -8.1 ± 0.5; these values are quite comparable to those of Andromeda IX, a previously discovered low-luminosity M31 satellite. The discoveries of Andromeda X and of numerous other extremely faint satellites around M31 and the Milky Way in the past few years suggest that such objects may be plentiful in the Local Group.",

author = "Zucker, \{Daniel B.\} and Kniazev, \{Alexei Y.\} and David Mart{\'i}nez-Delgado and Bell, \{Eric F.\} and Rix, \{Hans Walter\} and Grebel, \{Eva K.\} and Holtzman, \{Jon A.\} and Walterbos, \{Rene A M\} and Rockosi, \{Constance M.\} and York, \{Donald G.\} and Barentine, \{J. C.\} and Howard Brewington and J. Brinkmann and Michael Harvanek and Kleinman, \{S. J.\} and Jurek Krzesinski and Dan Long and Neilsen, \{Eric H.\} and Atsuko Nitta and Snedden, \{Stephanie A.\}",

year = "2007",

month = apr,

day = "10",

doi = "10.1086/516748",

language = "English",

volume = "659",

pages = "L21--L24",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

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Zucker, DB, Kniazev, AY, Martínez-Delgado, D, Bell, EF, Rix, HW, Grebel, EK, Holtzman, JA, Walterbos, RAM, Rockosi, CM, York, DG, Barentine, JC, Brewington, H, Brinkmann, J, Harvanek, M, Kleinman, SJ, Krzesinski, J, Long, D, Neilsen, EH, Nitta, A & Snedden, SA 2007, 'Andromeda X, a new dwarf spheroidal satellite of M31: photometry', The Astrophysical Journal, vol. 659, no. 1, pp. L21-L24. https://doi.org/10.1086/516748

TY - JOUR

T1 - Andromeda X, a new dwarf spheroidal satellite of M31

T2 - photometry

AU - Zucker, Daniel B.

AU - Kniazev, Alexei Y.

AU - Martínez-Delgado, David

AU - Bell, Eric F.

AU - Rix, Hans Walter

AU - Grebel, Eva K.

AU - Holtzman, Jon A.

AU - Walterbos, Rene A M

AU - Rockosi, Constance M.

AU - York, Donald G.

AU - Barentine, J. C.

AU - Brewington, Howard

AU - Brinkmann, J.

AU - Harvanek, Michael

AU - Kleinman, S. J.

AU - Krzesinski, Jurek

AU - Long, Dan

AU - Neilsen, Eric H.

AU - Nitta, Atsuko

AU - Snedden, Stephanie A.

PY - 2007/4/10

Y1 - 2007/4/10

N2 - We report the discovery of Andromeda X, a new dwarf spheroidal satellite of M31, based on stellar photometry from the Sloan Digital Sky Survey. Using follow-up imaging data we have estimated its distance and other physical properties. We find that Andromeda X has a dereddened central surface brightness of μv, 0 ∼ 26.7 mag arcsec-2 and a total apparent magnitude of Vtot ∼ 16.1, which at the derived distance modulus, (m - M)0 ∼ 24.12-24.34, yields an absolute magnitude of M v ∼ -8.1 ± 0.5; these values are quite comparable to those of Andromeda IX, a previously discovered low-luminosity M31 satellite. The discoveries of Andromeda X and of numerous other extremely faint satellites around M31 and the Milky Way in the past few years suggest that such objects may be plentiful in the Local Group.

AB - We report the discovery of Andromeda X, a new dwarf spheroidal satellite of M31, based on stellar photometry from the Sloan Digital Sky Survey. Using follow-up imaging data we have estimated its distance and other physical properties. We find that Andromeda X has a dereddened central surface brightness of μv, 0 ∼ 26.7 mag arcsec-2 and a total apparent magnitude of Vtot ∼ 16.1, which at the derived distance modulus, (m - M)0 ∼ 24.12-24.34, yields an absolute magnitude of M v ∼ -8.1 ± 0.5; these values are quite comparable to those of Andromeda IX, a previously discovered low-luminosity M31 satellite. The discoveries of Andromeda X and of numerous other extremely faint satellites around M31 and the Milky Way in the past few years suggest that such objects may be plentiful in the Local Group.

UR - https://www.scopus.com/pages/publications/34248189214

U2 - 10.1086/516748

DO - 10.1086/516748

M3 - Article

AN - SCOPUS:34248189214

SN - 0004-637X

VL - 659

SP - L21-L24

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1

ER -

Andromeda X, a new dwarf spheroidal satellite of M31: photometry

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