Observation of the Halo of the Edge-On Galaxy IC 5249 | Zendy

F. Abe | Zendy; I. A. Bond | Zendy; B. S. Carter | Zendy; R. J. Dodd | Zendy; M. Fujimoto | Zendy; J. B. Hearnshaw | Zendy; Mitsuhiko Honda | Zendy; J. Jugaku | Zendy; S. Kabe | Zendy; P. M. Kilmartin | Zendy; B. Koribalski | Zendy; Masakazu A. R. Kobayashi | Zendy; K. Masuda | Zendy; Y. Matsubara | Zendy; M. Miyamoto | Zendy; Y. Muraki | Zendy; T. Nakamura | Zendy; G. R. Nankivell | Zendy; S. Noda | Zendy; G. S. Pennycook | Zendy; Leonie Z. Pipe | Zendy; Nicholas J. Rattenbury | Zendy; M. Reid | Zendy; N. J. Rumsey | Zendy; To. Saito | Zendy; H. Sato | Zendy; S. Sato | Zendy; M. Sekiguchi | Zendy; D. J. Sullivan | Zendy; T. Sumi | Zendy; Y. Watase | Zendy; Takufumi Yanagisawa | Zendy; P. C. M. Yock | Zendy; M. Yoshizawa | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Observation of the Halo of the Edge-On Galaxy IC 5249

Author(s) -

F. Abe,

I. A. Bond,

B. S. Carter,

R. J. Dodd,

M. Fujimoto,

J. B. Hearnshaw,

Mitsuhiko Honda,

J. Jugaku,

S. Kabe,

P. M. Kilmartin,

B. Koribalski,

Masakazu A. R. Kobayashi,

K. Masuda,

Y. Matsubara,

M. Miyamoto,

Y. Muraki,

T. Nakamura,

G. R. Nankivell,

S. Noda,

G. S. Pennycook,

Leonie Z. Pipe,

Nicholas J. Rattenbury,

M. Reid,

N. J. Rumsey,

To. Saito,

H. Sato,

S. Sato,

M. Sekiguchi,

D. J. Sullivan,

T. Sumi,

Y. Watase,

Takufumi Yanagisawa,

P. C. M. Yock,

M. Yoshizawa

Publication year - 1999

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/300907

Subject(s) - physics , astrophysics , halo , galaxy , astronomy , stars , galaxy rotation curve , surface brightness , photometry (optics) , brightness , galactic halo , radius , computer security , computer science

Optical photometry and H I synthesis observations of the southern edge-on Sc/Sd galaxy IC 5249 are reported. The rotation curve rises linearly out to a radius of 7 kpc and then appears to flatten out at ~100 km s-1. The H I mass out to 24.5 kpc is ~6 × 109 M⊙, or 10% of the total mass out to this radius. The color, central surface brightness, scale height, and scale length of the disk of IC 5249 are R - I ≈ 0.4, μ = 20.6 ± 0.1RC mag arcsec-2, 600 ± 40 pc, and 11 ± 2 kpc, respectively. Additional light to that predicted by an exponential disk is present at distances greater than 3 kpc from the disk. At 5 kpc the surface brightness is 27–28RC mag arcsec-2. The measured distribution of surface brightness is used to constrain the abundance of low-mass main-sequence stars in the halo of the galaxy. A halo made up entirely of main-sequence stars heavier than 0.13 M⊙ is excluded. We also find that less than 20% of the halo can be composed of main-sequence stars heavier than 0.30 M⊙. Further observations are required to determine the rotation curve of IC 5249 to large radii and to determine precisely the abundance of low-mass main-sequence stars in the halo of the galaxy.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research