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Mass segregation in the globular cluster Palomar 5 and its tidal tails

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Mass segregation in the globular cluster Palomar 5 and its tidal tails. / Koch, Andreas; Grebel, Eva K.; Odenkirchen, Michael et al.
In: The Astronomical Journal, Vol. 128, No. 5, 11.2004, p. 2274-2287.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Koch, A, Grebel, EK, Odenkirchen, M, Martínez-Delgado, D & Caldwell, JAR 2004, 'Mass segregation in the globular cluster Palomar 5 and its tidal tails', The Astronomical Journal, vol. 128, no. 5, pp. 2274-2287. https://doi.org/10.1086/425046

APA

Koch, A., Grebel, E. K., Odenkirchen, M., Martínez-Delgado, D., & Caldwell, J. A. R. (2004). Mass segregation in the globular cluster Palomar 5 and its tidal tails. The Astronomical Journal, 128(5), 2274-2287. https://doi.org/10.1086/425046

Vancouver

Koch A, Grebel EK, Odenkirchen M, Martínez-Delgado D, Caldwell JAR. Mass segregation in the globular cluster Palomar 5 and its tidal tails. The Astronomical Journal. 2004 Nov;128(5):2274-2287. doi: 10.1086/425046

Author

Koch, Andreas ; Grebel, Eva K. ; Odenkirchen, Michael et al. / Mass segregation in the globular cluster Palomar 5 and its tidal tails. In: The Astronomical Journal. 2004 ; Vol. 128, No. 5. pp. 2274-2287.

Bibtex

@article{ce326e43bf0740878ffc542a5f95d38d,
title = "Mass segregation in the globular cluster Palomar 5 and its tidal tails",
abstract = "We present the stellar main-sequence luminosity function (LF) of the disrupted, low-mass, low-concentration globular cluster Palomar 5 and its well-defined tidal tails, which emanate from the cluster as a result of its tidal interaction with the Milky Way. The results of our deep (B ~ 24.5) wide-field photometry unequivocally indicate that preferentially fainter stars were removed from the cluster so that the LF of the cluster's main body exhibits a significant degree of flattening compared with other globular clusters. There is clear evidence of mass segregation, which is reflected in a radial variation of the LFs. The LF of the tidal tails is distinctly enhanced with faint, low-mass stars. Pal 5 exhibits a binary main sequence, and we estimate a photometric binary frequency of roughly 10%. The binaries also show evidence of mass segregation, with more massive binary systems being more strongly concentrated toward the cluster center.",
author = "Andreas Koch and Grebel, {Eva K.} and Michael Odenkirchen and David Mart{\'i}nez-Delgado and Caldwell, {John A. R.}",
year = "2004",
month = nov,
doi = "10.1086/425046",
language = "English",
volume = "128",
pages = "2274--2287",
journal = "The Astronomical Journal",
issn = "0004-6256",
publisher = "IOP Publishing Ltd.",
number = "5",

}

RIS

TY - JOUR

T1 - Mass segregation in the globular cluster Palomar 5 and its tidal tails

AU - Koch, Andreas

AU - Grebel, Eva K.

AU - Odenkirchen, Michael

AU - Martínez-Delgado, David

AU - Caldwell, John A. R.

PY - 2004/11

Y1 - 2004/11

N2 - We present the stellar main-sequence luminosity function (LF) of the disrupted, low-mass, low-concentration globular cluster Palomar 5 and its well-defined tidal tails, which emanate from the cluster as a result of its tidal interaction with the Milky Way. The results of our deep (B ~ 24.5) wide-field photometry unequivocally indicate that preferentially fainter stars were removed from the cluster so that the LF of the cluster's main body exhibits a significant degree of flattening compared with other globular clusters. There is clear evidence of mass segregation, which is reflected in a radial variation of the LFs. The LF of the tidal tails is distinctly enhanced with faint, low-mass stars. Pal 5 exhibits a binary main sequence, and we estimate a photometric binary frequency of roughly 10%. The binaries also show evidence of mass segregation, with more massive binary systems being more strongly concentrated toward the cluster center.

AB - We present the stellar main-sequence luminosity function (LF) of the disrupted, low-mass, low-concentration globular cluster Palomar 5 and its well-defined tidal tails, which emanate from the cluster as a result of its tidal interaction with the Milky Way. The results of our deep (B ~ 24.5) wide-field photometry unequivocally indicate that preferentially fainter stars were removed from the cluster so that the LF of the cluster's main body exhibits a significant degree of flattening compared with other globular clusters. There is clear evidence of mass segregation, which is reflected in a radial variation of the LFs. The LF of the tidal tails is distinctly enhanced with faint, low-mass stars. Pal 5 exhibits a binary main sequence, and we estimate a photometric binary frequency of roughly 10%. The binaries also show evidence of mass segregation, with more massive binary systems being more strongly concentrated toward the cluster center.

U2 - 10.1086/425046

DO - 10.1086/425046

M3 - Journal article

VL - 128

SP - 2274

EP - 2287

JO - The Astronomical Journal

JF - The Astronomical Journal

SN - 0004-6256

IS - 5

ER -