2025RAA....25d1001H

Query : 2025RAA....25d1001H

2025RAA....25d1001H - Research in Astron. and astroph., 25, part no 4, 1001 (2025/April-0)

Halo Spin Dependence on Environment for H I-bearing Galaxies.

HUA Z., RONG Y. and HU H.

Abstract (from CDS):

Leveraging the semi-analytic method, we compute halo spins for a substantial sample of H I-bearing galaxies observed in the Arecibo Legacy Fast ALFA Survey. Our statistical analysis reveals a correlation between halo spin and environment, although the trend is subtle. On average, galaxies exhibit a decreasing halo spin tendency in denser environments. This observation contrasts with previous results from N-body simulations in the Lambda Cold Dark Matter framework. The discrepancy may be attributed to environmental gas stripping, leading to an underestimation of halo spins in galaxies in denser environments, or to baryonic processes that significantly alter the original dark matter halo spins, deviating from previous N-body simulation findings.

Abstract Copyright: © 2025. National Astronomical Observatories, CAS and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Journal keyword(s): galaxies: halos - galaxies: evolution - galaxies: statistics

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 65-90 GiP 10 43 05.45145 +13 30 37.0928   15.7       ~ 24 0

Query : 2025RAA....25d1001H

Basic data :
Z 65-90 -- Galaxy in Pair of Galaxies
Other object types: otypes_help 		GiP (), G (2009ApJS,Z,...), GiG (SDSSCGB), AG? (2020MNRAS), HI (2016A&A), Opt (SDSS)
ICRS coord. (ep=J2000) : 		10 43 05.45145 +13 30 37.0928 (Optical) [ ] C 2009ApJS..182..543A
FK4 coord. (ep=B1950 eq=1950) : 		10 40 26.27552 +13 46 21.4090 [ ]
Gal coord. (ep=J2000) : 		230.92168751 +57.10833717 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 1253 [45] / z(spectroscopic) 0.00419 [0.00015] / cz 1256.1 [45.0]
   (Opt) E 2009ApJS..182..543A
Morphological type: 		dI C 2015ApJS..217...27A
Angular size (arcmin): 		0.7 0.3 0 (Opt) D 2005ApJS..160..149S
Fluxes (6) :
B 15.7 [~] E ~
u (AB) 17.596 [0.035] D 2009ApJS..182..543A
g (AB) 16.708 [0.020] D 2009ApJS..182..543A
r (AB) 16.307 [0.035] D 2009ApJS..182..543A
i (AB) 16.157 [0.012] D 2009ApJS..182..543A
z (AB) 16.191 [0.043] D 2009ApJS..182..543A
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 3 Display criteria :

Identifiers (9) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

Z 65-90 LEDA 31937 Z 1040.3+1346
ADBS J104310+1330 SDSSCGB 597.1 [HDL96] 65 55
AGC 200543 SDSS J104305.45+133037.3 [RS2000] 143

References (24 between 1850 and 2026) (Total 24)
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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Collections of Measurements Description of Measurements

Velocities : 9    Distance : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : Z 65-90

Link by name to the catalogue in VizieR :

SDSS J104305.45+133037.3

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