2003A&A...409...53S

Query : 2003A&A...409...53S

2003A&A...409...53S - Astronomy and Astrophysics, volume 40953-56 (2003/10-1)

ΛCDM and the distribution of dark matter in galaxies: A constant-density halo around DDO 47.

SALUCCI P., WALTER F. and BORRIELLO A.

Abstract (from CDS):

In this paper we present a test case for the existence of a core in the density distribution of dark halos around galaxies. DDO 47 has a rotation curve that increases linearly from the first data point, at 300pc, up to the last one, at 5 kpc. This profile implies the presence of a (dark) halo with an (approximately) constant density over the region mapped by data. This evidences the inability of standard Λ Cold Dark Matter scenario to account for the dark matter distribution around galaxies, and points toward the existence of an intriguing halo scale-length of homogeneity. This work adds up to the results of Blais-Ouellette et al. (2003, in press, astro-ph/0203146), Trott & Webster (2002MNRAS.334..621T), Binney & Evans (2001MNRAS.327L..27B), de Blok & Bosma (2002A&A...385..816D) and Bottema (2002A&A...388..809B) in suggesting that at galactic scales CDM theory should incorporate, as an intrinsic property, a ``density core" feature.

Abstract Copyright: ∼

Journal keyword(s): cosmology: dark mater - galaxies: spiral - galaxies: formation

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	Z 87-30	G	07 41 56.3059298112	+16 48 07.451632188		15.4				~	233	0

Query : 2003A&A...409...53S

Basic data :

Z 87-30 -- Galaxy

G (2008ApJ,UGC,...), * (Gaia), Opt (SDSS)

07 41 56.3059298112 +16 48 07.451632188 (Optical) [ 0.3961 0.3153 90 ] A 2020yCat.1350....0G

07 39 04.2364085862 +16 55 13.078935819 [ 0.3961 0.3153 90 ]

203.1022910459172 +18.5438846718070 [ 0.3961 0.3153 90 ]

-0.403 -2.534 [0.473 0.361 90] A 2020yCat.1350....0G

V(km/s) 272 [3] / z(emission) 0.000908 [0.000010] / cz 272.12 [3.00] (Rad) C 2022ApJS..261...21Y

0.387 [0.4089] A 2020yCat.1350....0G

IA_B C 2019MNRAS.488..590B

3.72 3.09 ~ (Opt) E 2003A&A...412...45P

B 15.4 [~] E ~

G 19.883005 [0.006194] C 2020yCat.1350....0G

u (AB) 16.65 [0.04] D 2009ApJS..182..543A

g (AB) 15.515 [0.006] C 2009ApJS..182..543A

r (AB) 15.323 [0.007] C 2009ApJS..182..543A

i (AB) 15.166 [0.010] C 2009ApJS..182..543A

z (AB) 16.9 [0.2] E 2009ApJS..182..543A

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`UGC 3974`	`SDSS J074156.30+164807.4`	`Z 0739.0+1655`	`Gaia DR2 3166024662526413184`
`DDO 47`	`SPB 88`	`Z 87-30`	`Gaia DR3 3166024662526413184`
`LEDA 21600`	`TC 93`	`[MI94] Im 42`
`MCG+03-20-010`	`UZC J074155.4+164809`	`[VDD93] 69`

References (233 between 1850 and 2026) (Total 233)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : Z 87-30

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UGC 3974 SDSS J074156.30+164807.4 Gaia DR2 3166024662526413184 Gaia DR3 3166024662526413184

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