2006A&A...457..779T


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET19:07:02

2006A&A...457..779T - Astronomy and Astrophysics, volume 457, 779-785 (2006/10-3)

The multi-phase gaseous halos of star-forming late-type galaxies. II. Statistical analysis of key parameters.

TUELLMANN R., BREITSCHWERDT D., ROSSA J., PIETSCH W. and DETTMAR R.-J.

Abstract (from CDS):

In a previous paper (PaperI) we showed that multi-phase gaseous halos of late-type spiral galaxies, detected in the radio continuum, in Hα, and in X-rays, are remarkably well correlated regarding their morphology and spatial extent. In this work we present new results from a statistical analysis to specify and quantify these phenomenological relations in more detail. This is accomplished by investigating soft X-ray (0.3-2.0keV) luminosities, FIR, radio continuum (1.4GHz), Hα, B-band, and UV (1550-1650Å) luminosities for a sample of 23 edge-on late-type spiral galaxies. Typical star formation indicators, such as star formation rates (SFRs), are determined and a statistical multi-parameter/frequency correlation analysis is carried out. We find strong linear correlations, covering at least two orders of magnitude, between star formation indicators and integrated (disk+halo) luminosities in all covered wavebands. In addition to the well-established LFIR/L1.4GHz relation, we show new and highly significant linear dependencies between integrated soft X-ray luminosities and FIR, radio continuum, Hα, B-band, and UV luminosities. Moreover, integrated soft X-ray luminosities correlate well with SFRs and the energy input into the ISM by SNe. The same holds if these quantities are plotted against soft halo X-ray luminosities. Only a weak correlation exists between the dust mass of a galaxy and the corresponding X-ray luminosity. Among soft X-ray luminosities, baryonic, and HI gas masses, no significant correlations are found. There seems to exist a critical input energy by SNe into the ISM or a SFR threshold for multi-phase halos to appear. It is still not clear whether this threshold is a physical one or represents an instrument-dependent sensitivity limit. These findings strongly support our previous results that multi-phase gaseous galaxy halos in late-type spiral galaxies are created and maintained by outflowing gas produced in star formation processes in the disk plane. They conflict with the concept of halos being mainly due to infalling gas from the intergalactic medium.

Abstract Copyright:

Journal keyword(s): galaxies: formation - galaxies: halos - galaxies: ISM - galaxies: spiral - galaxies: starburst - X-rays: galaxies - X-rays: ISM

Simbad objects: 22

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Number of rows : 22

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 55 GiG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 716 2
2 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3000 2
3 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1548 2
4 NGC 1482 GiP 03 54 38.928 -20 30 08.82 13.15 13.14 12.15 11.29   ~ 260 2
5 NGC 1511 GiP 03 59 36.98373 -67 38 03.3430   11.97   10.74 11.1 ~ 114 0
6 NGC 3044 G 09 53 40.884 +01 34 46.74   12.7   12.7 12.3 ~ 198 1
7 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5426 6
8 NGC 3079 Sy2 10 01 57.80342 +55 40 47.2428 11.57 11.54 10.86     ~ 1279 3
9 NGC 3221 G 10 22 19.988 +21 34 10.56   14.3       ~ 120 1
10 M 108 SBG 11 11 30.967 +55 40 26.84   10.70       ~ 421 1
11 NGC 3628 GiP 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 765 3
12 NGC 3877 GiG 11 46 07.782 +47 29 40.20   11.8       ~ 282 0
13 NGC 4244 GiG 12 17 29.659 +37 48 25.60   10.71   9.99   ~ 520 1
14 NGC 4522 GiG 12 33 39.657 +09 10 29.54   13.6       ~ 334 0
15 NGC 4565 LIN 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 888 0
16 NGC 4631 GiP 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 988 2
17 NGC 4634 GiP 12 42 40.986 +14 17 45.15   13.6       ~ 165 0
18 NGC 4656 GiP 12 43 57.6880843522 +32 10 13.343087893   10.96 10.52     ~ 328 3
19 NGC 4666 GiP 12 45 08.676 -00 27 42.88   11.7   11.5 10.7 ~ 337 1
20 NGC 5775 GiP 14 53 57.653 +03 32 40.10   13.0 11.34     ~ 397 2
21 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 698 1
22 NGC 6503 LIN 17 49 26.4206717056 +70 08 39.587370580 11.56 10.95 10.28 9.92   ~ 476 1

    Equat.    Gal    SGal    Ecl

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2021.03.02-19:07:02

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