The shape of dark matter haloes - I. H I observations of edge-on galaxies

S. P. C. Peters; P. C. van der Kruit; R. J. Allen; K. C. Freeman

doi:10.1093/mnras/stw1774

The shape of dark matter haloes - I. H I observations of edge-on galaxies

S. P. C. Peters, P. C. van der Kruit, R. J. Allen, K. C. Freeman

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Samenvatting

We present neutral hydrogen observations for a sample of eight nearby, late-type, edge-on galaxies. All of the galaxies have been well resolved in the radial direction, while six have also been well resolved in the vertical direction. We find that each of the galaxies has approximately the same maximum surface brightness temperature throughout its disc. We argue that self-absorption is the main cause of this phenomenon and that subsequent decompositions will require a treatment of this.

Originele taal-2	English
Pagina's (van-tot)	2-20
Aantal pagina's	19
Tijdschrift	Monthly Notices of the Royal Astronomical Society
Volume	464
Nummer van het tijdschrift	1
DOI's	https://doi.org/10.1093/mnras/stw1774
Status	Published - jan-2017

Toegang tot document

10.1093/mnras/stw1774

The shape of dark matter haloesFinal publisher's version, 6,51 MBLicentie: Unspecified

http://adsabs.harvard.edu/abs/2017MNRAS.464....2P

Citeer dit

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author = "Peters, {S. P. C.} and {van der Kruit}, {P. C.} and Allen, {R. J.} and Freeman, {K. C.}",

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T1 - The shape of dark matter haloes - I. H I observations of edge-on galaxies

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AU - van der Kruit, P. C.

AU - Allen, R. J.

AU - Freeman, K. C.

PY - 2017/1

Y1 - 2017/1

N2 - We present neutral hydrogen observations for a sample of eight nearby, late-type, edge-on galaxies. All of the galaxies have been well resolved in the radial direction, while six have also been well resolved in the vertical direction. We find that each of the galaxies has approximately the same maximum surface brightness temperature throughout its disc. We argue that self-absorption is the main cause of this phenomenon and that subsequent decompositions will require a treatment of this.

AB - We present neutral hydrogen observations for a sample of eight nearby, late-type, edge-on galaxies. All of the galaxies have been well resolved in the radial direction, while six have also been well resolved in the vertical direction. We find that each of the galaxies has approximately the same maximum surface brightness temperature throughout its disc. We argue that self-absorption is the main cause of this phenomenon and that subsequent decompositions will require a treatment of this.

KW - galaxies: haloes

KW - galaxies: kinematics and dynamics

KW - galaxies: photometry

KW - galaxies: spiral

KW - galaxies: structure

KW - NGC 4244

KW - NGC-891

KW - NEUTRAL HYDROGEN OBSERVATIONS

KW - GALACTIC PLANE SURVEY

KW - SPIRAL GALAXIES

KW - LENTICULAR GALAXIES

KW - MOLECULAR-HYDROGEN

KW - STAR-FORMATION

KW - THICK DISK

KW - UGC 7321

U2 - 10.1093/mnras/stw1774

DO - 10.1093/mnras/stw1774

M3 - Article

VL - 464

SP - 2

EP - 20

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

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