Nearby spiral globular cluster systems. I. Luminosity functions

Julie B. Nantais, John P. Huchra, Pauline Barmby, Knut A G Olsen, Tom H. Jarrett

Resultado de la investigación: Article

13 Citas (Scopus)

Resumen

We compare the near-infrared (JHK) globular cluster luminosity functions (GCLFs) of the Milky Way, M31, and the Sculptor Group spiral galaxies. We obtained near-infrared photometry with the Persson's Auxiliary Nasmyth Infrared Camera on the Baade Telescope for 38 objects (mostly globular cluster candidates) in the Sculptor Group. We also have near-infrared photometry from the Two Micron All Sky Survey (2MASS)-6X database for 360 M31 globular cluster candidates and aperture photometry for 96 Milky Way globular cluster candidates from the 2MASS All-Sky and Second Incremental Release databases. The M31 6X GCLFs peak at absolute reddening-corrected magnitudes of M J0 = -9.18, M H0 = -9.73, and M K0, = -9.98. The mean brightness of the Milky Way objects is consistent with that of M31 after accounting for incompleteness. The average Sculptor absolute magnitudes (correcting for relative distance from the literature and foreground reddening) are M J0 = -9.18, M H0 = -9.70, and M K0, = -9.80. NGC 300 alone has absolute foreground-dereddened magnitudes M H0 = -8.87, M H0 = -9.39, and M K0 = -9.46 using the newest Gieren et al. distance. This implies either that the NGC 300 GCLF may be intrinsically fainter than that of the larger galaxy M31 or that NGC 300 may be slightly farther away than previously thought. Straightforward application of our M31 GCLF results as a calibrator gives NGC 300 distance moduli of 26.68 ± 0.14 using J, 26.71 ± 0.14 using H, and 26.89 ± 0.14 using K.

Idioma originalEnglish
Páginas (desde-hasta)1416-1425
Número de páginas10
PublicaciónAstronomical Journal
Volumen131
N.º3
DOI
EstadoPublished - mar 2006

Huella dactilar

globular clusters
luminosity
near infrared
infrared photometry
spiral galaxies
photometry
sky
brightness
apertures
cameras
telescopes
galaxies

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Citar esto

Nantais, J. B., Huchra, J. P., Barmby, P., Olsen, K. A. G., & Jarrett, T. H. (2006). Nearby spiral globular cluster systems. I. Luminosity functions. Astronomical Journal, 131(3), 1416-1425. https://doi.org/10.1086/500011
Nantais, Julie B. ; Huchra, John P. ; Barmby, Pauline ; Olsen, Knut A G ; Jarrett, Tom H. / Nearby spiral globular cluster systems. I. Luminosity functions. En: Astronomical Journal. 2006 ; Vol. 131, N.º 3. pp. 1416-1425.
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abstract = "We compare the near-infrared (JHK) globular cluster luminosity functions (GCLFs) of the Milky Way, M31, and the Sculptor Group spiral galaxies. We obtained near-infrared photometry with the Persson's Auxiliary Nasmyth Infrared Camera on the Baade Telescope for 38 objects (mostly globular cluster candidates) in the Sculptor Group. We also have near-infrared photometry from the Two Micron All Sky Survey (2MASS)-6X database for 360 M31 globular cluster candidates and aperture photometry for 96 Milky Way globular cluster candidates from the 2MASS All-Sky and Second Incremental Release databases. The M31 6X GCLFs peak at absolute reddening-corrected magnitudes of M J0 = -9.18, M H0 = -9.73, and M K0, = -9.98. The mean brightness of the Milky Way objects is consistent with that of M31 after accounting for incompleteness. The average Sculptor absolute magnitudes (correcting for relative distance from the literature and foreground reddening) are M J0 = -9.18, M H0 = -9.70, and M K0, = -9.80. NGC 300 alone has absolute foreground-dereddened magnitudes M H0 = -8.87, M H0 = -9.39, and M K0 = -9.46 using the newest Gieren et al. distance. This implies either that the NGC 300 GCLF may be intrinsically fainter than that of the larger galaxy M31 or that NGC 300 may be slightly farther away than previously thought. Straightforward application of our M31 GCLF results as a calibrator gives NGC 300 distance moduli of 26.68 ± 0.14 using J, 26.71 ± 0.14 using H, and 26.89 ± 0.14 using K.",
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Nantais, JB, Huchra, JP, Barmby, P, Olsen, KAG & Jarrett, TH 2006, 'Nearby spiral globular cluster systems. I. Luminosity functions', Astronomical Journal, vol. 131, n.º 3, pp. 1416-1425. https://doi.org/10.1086/500011

Nearby spiral globular cluster systems. I. Luminosity functions. / Nantais, Julie B.; Huchra, John P.; Barmby, Pauline; Olsen, Knut A G; Jarrett, Tom H.

En: Astronomical Journal, Vol. 131, N.º 3, 03.2006, p. 1416-1425.

Resultado de la investigación: Article

TY - JOUR

T1 - Nearby spiral globular cluster systems. I. Luminosity functions

AU - Nantais, Julie B.

AU - Huchra, John P.

AU - Barmby, Pauline

AU - Olsen, Knut A G

AU - Jarrett, Tom H.

PY - 2006/3

Y1 - 2006/3

N2 - We compare the near-infrared (JHK) globular cluster luminosity functions (GCLFs) of the Milky Way, M31, and the Sculptor Group spiral galaxies. We obtained near-infrared photometry with the Persson's Auxiliary Nasmyth Infrared Camera on the Baade Telescope for 38 objects (mostly globular cluster candidates) in the Sculptor Group. We also have near-infrared photometry from the Two Micron All Sky Survey (2MASS)-6X database for 360 M31 globular cluster candidates and aperture photometry for 96 Milky Way globular cluster candidates from the 2MASS All-Sky and Second Incremental Release databases. The M31 6X GCLFs peak at absolute reddening-corrected magnitudes of M J0 = -9.18, M H0 = -9.73, and M K0, = -9.98. The mean brightness of the Milky Way objects is consistent with that of M31 after accounting for incompleteness. The average Sculptor absolute magnitudes (correcting for relative distance from the literature and foreground reddening) are M J0 = -9.18, M H0 = -9.70, and M K0, = -9.80. NGC 300 alone has absolute foreground-dereddened magnitudes M H0 = -8.87, M H0 = -9.39, and M K0 = -9.46 using the newest Gieren et al. distance. This implies either that the NGC 300 GCLF may be intrinsically fainter than that of the larger galaxy M31 or that NGC 300 may be slightly farther away than previously thought. Straightforward application of our M31 GCLF results as a calibrator gives NGC 300 distance moduli of 26.68 ± 0.14 using J, 26.71 ± 0.14 using H, and 26.89 ± 0.14 using K.

AB - We compare the near-infrared (JHK) globular cluster luminosity functions (GCLFs) of the Milky Way, M31, and the Sculptor Group spiral galaxies. We obtained near-infrared photometry with the Persson's Auxiliary Nasmyth Infrared Camera on the Baade Telescope for 38 objects (mostly globular cluster candidates) in the Sculptor Group. We also have near-infrared photometry from the Two Micron All Sky Survey (2MASS)-6X database for 360 M31 globular cluster candidates and aperture photometry for 96 Milky Way globular cluster candidates from the 2MASS All-Sky and Second Incremental Release databases. The M31 6X GCLFs peak at absolute reddening-corrected magnitudes of M J0 = -9.18, M H0 = -9.73, and M K0, = -9.98. The mean brightness of the Milky Way objects is consistent with that of M31 after accounting for incompleteness. The average Sculptor absolute magnitudes (correcting for relative distance from the literature and foreground reddening) are M J0 = -9.18, M H0 = -9.70, and M K0, = -9.80. NGC 300 alone has absolute foreground-dereddened magnitudes M H0 = -8.87, M H0 = -9.39, and M K0 = -9.46 using the newest Gieren et al. distance. This implies either that the NGC 300 GCLF may be intrinsically fainter than that of the larger galaxy M31 or that NGC 300 may be slightly farther away than previously thought. Straightforward application of our M31 GCLF results as a calibrator gives NGC 300 distance moduli of 26.68 ± 0.14 using J, 26.71 ± 0.14 using H, and 26.89 ± 0.14 using K.

KW - Galaxies: individual (M31, NGC 55, NGC 247, NGC 253, NGC 300)

KW - Galaxies: spiral

KW - Galaxies: star clusters

KW - Globular clusters: general

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