2010MNRAS.402.1005H

Query : 2010MNRAS.402.1005H

2010MNRAS.402.1005H - Mon. Not. R. Astron. Soc., 402, 1005-1026 (2010/February-3)

The circumnuclear environment of the peculiar galaxy NGC3310.

HAGELE G.F., DIAZ A.I., CARDACI M.V., TERLEVICH E. and TERLEVICH R.

Abstract (from CDS):

Gas and star velocity dispersions have been derived for eight circumnuclear star-forming regions (CNSFRs) and the nucleus of the spiral galaxy NGC3310 using high-resolution spectroscopy in the blue and far red. Stellar velocity dispersions have been obtained from the CaII triplet in the near-IR, using cross-correlation techniques, while gas velocity dispersions have been measured by Gaussian fits to the Hβλ4861Å and [OIII]λ5007Å emission lines.

The CNSFR stellar velocity dispersions range from 31 to 73km/s. These values, together with the sizes measured on archival Hubble Space Telescope images, yield upper limits to the dynamical masses for the individual star clusters between 1.8 and 7.1x106M☉, for the whole CNSFR between 2x107 and 1.4x108M☉, and 5.3x107M☉, for the nucleus inside the inner 14.2pc. The masses of the ionizing stellar population responsible for the HII region gaseous emission have been derived from their published Hα luminosities and are found to be between 8.7x105 and 2.1x106M☉ for the star-forming regions and 2.1x105M☉ for the galaxy nucleus; they therefore constitute between 1 and 7 per cent of the total dynamical mass.

The ionized gas kinematics is complex; two different kinematical components seem to be present as evidenced by different linewidths and Doppler shifts.


Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): HII regions - galaxies: individual: NGC3310 - galaxies: kinematics and dynamics - galaxies: starburst - galaxies: star clusters

VizieR on-line data: <Available at CDS (J/MNRAS/402/1005): table4.dat table5.dat>

Nomenclature: Fig. 1, Table 2: [HDC2010] ANN (Nos R1-R2, R4-R7, R10, S6, N, J, X, Y). Fig. 10, Table 4: [HDC2010] ANNa N=113 among (Nos R1, R1a, R2, R2a-2b, R4, R4a-z, R5, R5a-5g, R6, R6a-6m, S6, S6a-6h, R7, R7a-7z, R10, R10a-n, N, Na), [HDC2010] RNNalf (Nos R4alf-R4del, R7alf-R7bet).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 14

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Number of rows : 14
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 Mrk 996 Sy1 01 27 35.5248944352 -06 19 35.432857848 14.75 15.05 14.48 14.06 13.70 ~ 136 0
2 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
3 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
4 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
7 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
8 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
9 NGC 3310 AGN 10 38 45.85707 +53 30 11.8940   12.45 12.15     ~ 809 1
10 [PDT93] E HII 10 38 46.109 +53 30 16.04           ~ 7 0
11 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
12 ESO 338-4 EmG 19 27 58.338 -41 34 30.81   13.55 13.21 13.14 13.43 ~ 253 1
13 NGC 7673 EmG 23 27 41.060 +23 35 20.18 12.84 13.17 12.76     ~ 282 2
14 [PDT93] A HII ~ ~           ~ 6 0

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