M Dwarfs from Hubble Space Telescope Star Counts. V. The I-band Luminosity Function

(2)Tuorla Observatory; (3)Institute for Advanced Study; (4)University of California at Los Angeles); Andrew Gould (1); Chris Flynn (2); Finland; John N. Bahcall (3); Samir Salim (4) ((1)The Ohio State University; Turku University; Zheng Zheng (1)

arxiv: astro-ph/0308359 · v1 · pith:RRED3UHYnew · submitted 2003-08-20 · 🌌 astro-ph

M Dwarfs from Hubble Space Telescope Star Counts. V. The I-band Luminosity Function

Zheng Zheng (1) , Chris Flynn (2) , Andrew Gould (1) , John N. Bahcall (3) , Samir Salim (4) ((1)The Ohio State University , (2)Tuorla Observatory , Turku University , Finland

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(3)Institute for Advanced Study (4)University of California at Los Angeles)

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keywords functioni-bandluminositydiskdwarfshubblespacetelescope

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We derive the disk I-band luminosity function from the Zheng et al. sample of \~1400 disk M dwarfs observed with the Hubble Space Telescope. We adopt a Galactic-height-dependent color-magnitude relation to account for the metallicity gradient above the Galactic plane. The resultant I-band luminosity function peaks at M_I~9.5 and drops sharply toward M_I~10.5.

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M Dwarfs from Hubble Space Telescope Star Counts. V. The I-band Luminosity Function

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