2013ApJ...771..121G

Query : 2013ApJ...771..121G

2013ApJ...771..121G - Astrophys. J., 771, 121 (2013/July-2)

Using megamaser disks to probe black hole accretion.

GREENE J.E., SETH A., DEN BROK M., BRAATZ J.A., HENKEL C., SUN A.-L., PENG C.Y., KUO C.-Y., IMPELLIZZERI C.M.V. and LO K.Y.

Abstract (from CDS):

We examine the alignment between H2 O megamaser disks on subparsec scales with circumnuclear disks and bars on <500 pc scales observed with the Hubble Space Telescope (HST)/WFC3. The HST imaging reveals young stars, indicating the presence of gas. The megamaser disks are not well aligned with the circumnuclear bars or disks as traced by stars in the HST images. We speculate on the implications of the observed misalignments for fueling supermassive black holes in gas-rich spiral galaxies. In contrast, we find a strong preference for the rotation axes of the megamaser disks to align with radio continuum jets observed on ≳ 50 pc scales, in those galaxies for which radio continuum detections are available. Subarcsecond observations of molecular gas with ALMA will enable a more complete understanding of the interplay between circumnuclear structures.

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Journal keyword(s): galaxies: nuclei - galaxies: Seyfert

Simbad objects: 12

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Number of rows : 12
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 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
2 NGC 1194 Sy2 03 03 49.1124029328 -01 06 13.415103900   15.29 14.18     ~ 307 0
3 NGC 2273 Sy1 06 50 08.6691789600 +60 50 44.864645136   14.50 13.54     ~ 566 2
4 Z 286-10 Sy2 07 19 30.892 +59 21 18.48   13.3       ~ 148 0
5 NGC 2960 SyG 09 40 36.3826266216 +03 34 37.235848260   13.60       ~ 197 1
6 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
7 IC 2560 Sy2 10 16 18.7073057664 -33 33 49.720274676   12.53 13.31 11.25 12.2 ~ 283 1
8 NGC 3393 Sy2 10 48 23.4653152920 -25 09 43.487648784   13.10 13.95 11.67 12.2 ~ 471 1
9 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
10 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
11 NGC 6264 Sy2 16 57 16.1272966344 +27 50 58.574330124   15.5       ~ 123 1
12 NGC 6323 GiG 17 13 18.0454114728 +43 46 56.772281424   14.8       ~ 103 1

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