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Mass models from high-resolution H i data of the dwarf galaxy NGC 1560

Gianfranco Gentile, Maarten Baes UGent, B Famaey and Karel Van Acoleyen UGent (2010) MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 406(4). p.2493-2503
abstract
We present H i observations performed at the Giant Metrewave Radio Telescope (GMRT) of the nearby dwarf galaxy NGC 1560. This Sd galaxy is well known for a distinct 'wiggle' in its rotation curve. Our new observations have twice the resolution of the previously published H i data. We derived the rotation curve by taking projection effects into account, and we verified the derived kinematics by creating model data cubes. This new rotation curve is similar to the previously published one: we confirm the presence of a clear wiggle. The main differences are in the innermost similar to 100 arcsec of the rotation curve, where we find slightly (less than or similar to 5 km s-1) higher velocities. Mass modelling of the rotation curve results in good fits using the core-dominated Burkert halo (which however does not reproduce the wiggle), bad fits using the a Navarro, Frenk & White halo, and good fits using Modified Newtonian Dynamics (MOND), which also reproduces the wiggle.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
MODIFIED NEWTONIAN DYNAMICS, DARK-MATTER HALOS, SURFACE BRIGHTNESS GALAXIES, UNIVERSAL ROTATION CURVE, TULLY-FISHER RELATION, NEUTRAL HYDROGEN OBSERVATIONS, SPIRAL GALAXIES, VELOCITY DISPERSION, BARYONIC INFALL, STELLAR MASS, gravitation, galaxies: individual: NGC 1560, galaxies: kinematics and dynamics, galaxies: spiral, dark matter
journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Mon. Not. Roy. Astron. Soc.
volume
406
issue
4
pages
2493 - 2503
Web of Science type
Article
Web of Science id
000280672600027
ISSN
0035-8711
DOI
10.1111/j.1365-2966.2010.16838.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1237435
handle
http://hdl.handle.net/1854/LU-1237435
date created
2011-05-25 11:24:22
date last changed
2016-12-19 15:42:48
@article{1237435,
  abstract     = {We present H i observations performed at the Giant Metrewave Radio Telescope (GMRT) of the nearby dwarf galaxy NGC 1560. This Sd galaxy is well known for a distinct 'wiggle' in its rotation curve. Our new observations have twice the resolution of the previously published H i data. We derived the rotation curve by taking projection effects into account, and we verified the derived kinematics by creating model data cubes. This new rotation curve is similar to the previously published one: we confirm the presence of a clear wiggle. The main differences are in the innermost similar to 100 arcsec of the rotation curve, where we find slightly (less than or similar to 5 km s-1) higher velocities. Mass modelling of the rotation curve results in good fits using the core-dominated Burkert halo (which however does not reproduce the wiggle), bad fits using the a Navarro, Frenk \& White halo, and good fits using Modified Newtonian Dynamics (MOND), which also reproduces the wiggle.},
  author       = {Gentile, Gianfranco and Baes, Maarten and Famaey, B and Van Acoleyen, Karel},
  issn         = {0035-8711},
  journal      = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
  keyword      = {MODIFIED NEWTONIAN DYNAMICS,DARK-MATTER HALOS,SURFACE BRIGHTNESS GALAXIES,UNIVERSAL ROTATION CURVE,TULLY-FISHER RELATION,NEUTRAL HYDROGEN OBSERVATIONS,SPIRAL GALAXIES,VELOCITY DISPERSION,BARYONIC INFALL,STELLAR MASS,gravitation,galaxies: individual: NGC 1560,galaxies: kinematics and dynamics,galaxies: spiral,dark matter},
  language     = {eng},
  number       = {4},
  pages        = {2493--2503},
  title        = {Mass models from high-resolution H i data of the dwarf galaxy NGC 1560},
  url          = {http://dx.doi.org/10.1111/j.1365-2966.2010.16838.x},
  volume       = {406},
  year         = {2010},
}

Chicago
Gentile, Gianfranco, Maarten Baes, B Famaey, and Karel Van Acoleyen. 2010. “Mass Models from High-resolution H i Data of the Dwarf Galaxy NGC 1560.” Monthly Notices of the Royal Astronomical Society 406 (4): 2493–2503.
APA
Gentile, G., Baes, M., Famaey, B., & Van Acoleyen, K. (2010). Mass models from high-resolution H i data of the dwarf galaxy NGC 1560. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 406(4), 2493–2503.
Vancouver
1.
Gentile G, Baes M, Famaey B, Van Acoleyen K. Mass models from high-resolution H i data of the dwarf galaxy NGC 1560. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2010;406(4):2493–503.
MLA
Gentile, Gianfranco, Maarten Baes, B Famaey, et al. “Mass Models from High-resolution H i Data of the Dwarf Galaxy NGC 1560.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 406.4 (2010): 2493–2503. Print.