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J/ApJ/834/52       The Megamaser Cosmology Project (MCP). IX.       (Gao+, 2017)

The Megamaser Cosmology Project. IX. Black hole masses for three maser galaxies. Gao F., Braatz J.A., Reid M.J., Condon J.J., Greene J.E., Henkel C., Impellizzeri C.M.V., Lo K.Y., Kuo C.Y., Pesce D.W., Wagner J., Zhao W. <Astrophys. J., 834, 52-52 (2017)> =2017ApJ...834...52G (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Interferometry ; Masers Keywords: accretion, accretion disks; galaxies: active; quasars: supermassive black holes Abstract: As part of the Megamaser Cosmology Project, we present VLBI maps of nuclear water masers toward five galaxies. The masers originate in sub-parsec circumnuclear disks. For three of the galaxies, we fit Keplerian rotation curves to estimate their supermassive black hole (SMBH) masses, and determine (2.9±0.3)x106M for J0437+2456, (1.7±0.1)x107M for ESO 558-G009, and (1.1±0.2)x107M for NGC 5495. In the other two galaxies, Mrk 1029 and NGC 1320, the geometry and dynamics are more complicated and preclude robust black hole mass estimates. Including our new results, we compiled a list of 15 VLBI-confirmed disk maser galaxies with robust SMBH mass measurements. With this sample, we confirm the empirical relation of Rout∝0.3MSMBH reported in Wardle & Yusef-Zadeh (2012ApJ...750L..38W). We also find a tentative correlation between maser disk outer radii and Wide-Field Infrared Survey Explorer luminosity. We find no correlations of maser disk size with X-ray 2-10keV luminosity or [OIII] luminosity. Description: The high-resolution VLBI observations were conducted between 2010 and 2014 using the Very Long Baseline Array (VLBA) together with the GBT, and in some cases also with the Effelsberg 100m telescope (EB) and the phased Karl G. Jansky Very Large Array (VLA). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 78 6 Host galaxy properties table3.dat 63 237 Data for the five sources table4.dat 79 5 The supermassive black hole (SMBH) masses and basic properties of the maser galaxies
See also: J/ApJ/826/L32 : Black hole masses in megamaser disk galaxies (Greene+, 2016) J/ApJ/817/128 : Megamaser Cosmology Project. VIII. NGC5765B (Gao+, 2016) J/ApJ/727/20 : The Megamaser Cosmology Project (MCP). III. (Kuo+, 2011) J/ApJ/678/96 : Extragalactic H2O masers (Braatz+, 2008) J/ApJ/652/136 : Water maser emission in five AGNs (Kondratko+, 2006) J/AJ/126/2125 : SDSS candidate type II quasars (Zakamska+, 2003) J/ApJS/121/287 : The CfA2S catalog (Huchra+, 1999) J/ApJS/112/315 : Spectroscopic parameters of Seyfert nuclei (Ho+ 1997) http://safe.nrao.edu/wiki/bin/view/Main/MegamaserCosmologyProject : MCP project Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Galaxy name 13- 14 I2 h RAh Hour of right ascension (J2000) (1) 16- 17 I2 min RAm Minute of right ascension (J2000) 19- 25 F7.4 s RAs Second of right ascension (J2000) 27 A1 --- DE- Sign of declination (J2000) (1) 28- 29 I2 deg DEd Degree of declination (J2000) (1) 31- 32 I2 arcmin DEm Arcminute of declination (J2000) 34- 39 F6.3 arcsec DEs Arcsecond of declination (J2000) 41- 45 F5.1 mas eRA [1.3/500] RA uncertainty 47- 49 I3 mas eDE [2/500] DEC uncertainty 51- 57 A7 --- Ref Source 59- 62 I4 km/s Vlsr [2649/9067]? LSR velocity 64- 65 I2 km/s e_Vlsr [9/40]? Vlsr uncertainty (δV) 67- 70 A4 --- OType AGN type ("Sy 2") 72- 78 A7 --- TType Hubble morphological type
Note (1): Positions used for data correlation except for J0437+2456. The position for J0437+2456 (first row) comes from the phase-referenced observation, which has an offset of (191, 36.7)mas (east, north) from the correlation position. The position for NGC 5495 comes from Kondratko et al. (2006ApJ...638..100K).
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Galaxy name 13- 19 F7.2 km/s Vel [2435.5/9253] Maser line-of-sight velocity 21- 27 F7.4 mas oRA Maser component offset (1) 29- 35 F7.5 mas e_oRA [0.001/0.07] Uncertainty in oRA 37- 43 F7.4 mas oDE Maser component offset (1) 45- 51 F7.5 mas e_oDE [0.003/0.2] Uncertainty in oDE 53- 58 F6.2 --- SB [1.7/116.5] Maser surface brightness (2) 60- 63 F4.2 --- Noise [0.3/2.1] Noise (2)
Note (1): Positions given in Table 1: ID = RA (J2000) DE (J2000) J0437+2456 = 04:37:03.6840 24:56:06.837 ESO558-G009 = 07:04:21.0113 -21:35:18.948 NGC5495 = 02:17:03.566 05:17:31.43 Mrk1029 = 14:12:23.35 -27:06 29.20 NGC1320 = 03:24:48.70 -03:02:32.30 Note (2): In units of mJy/Beam/Channel.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Galaxy name 12 A1 --- f_Name [*] Flag on Name (2) 14- 18 F5.1 Mpc Dist [34/121] Distance (3) 20- 22 F3.1 Mpc e_Dist [1.9/6.6] Distance uncertainty 24- 28 E5.2 Msun SMBH Fitted SMBH mass 30- 34 E5.2 Msun e_SMBH [300000/] SMBH mass uncertainty 36- 41 F6.1 km/s Vel [2829/9130] Fitted recession velocity from VLBI 43- 46 F4.1 km/s e_Vel [10/67] Vel uncertainty 48- 51 F4.2 pc Rin [0.04/0.3]? Inner radius of the maser disk (4) 53- 56 F4.2 pc e_Rin [0.03/0.2]? Rin uncertainty 58- 61 F4.2 pc Rout [0.1/0.5]? Outer radius of the maser disk (4) 63- 66 F4.2 pc e_Rout [0.03/0.2]? Rout uncertainty 68- 70 I3 deg PA [20/256] Position angle of the disk 72- 73 I2 deg e_PA [2/10] PA uncertainty 75- 76 I2 deg Inc [79/98] Inclination angle of the disk 78 I1 deg e_Inc ? Inc uncertainty 79 A1 --- f_Inc [*] *: fixed to 90°
Note (2): * = We note that since the maser configuration in Mrk 1029 and NGC 1320 are not typical for a disk maser, their fitted SMBH mass, recession velocity, disk size, and position angle listed here are just indicative under a thin disk model. And we cannot estimate the disk inclination angle for NGC 1320 due to the lack of systemic masers, so we fixed it to 90°. Note (3): Distance, taken from NED using the Hubble flow with an H0 of 73km/s/Mpc. Note (4): The inner and outer radius of the maser disk, estimated from the high-velocity maser features. Please refer to Section 4.2 for a more comprehensive analysis.
History: From electronic version of the journal References: Braatz et al. Paper I. 2009ApJ...695..287R Braatz et al. Paper II. 2010ApJ...718..657B Kuo et al. Paper III. 2011ApJ...727...20K Cat. J/ApJ/727/20 Reid et al. Paper IV. 2013ApJ...767..154R Kuo et al. Paper V. 2013ApJ...767..155K Kuo et al. Paper VI. 2015ApJ...800...26K Pesce et al. Paper VII. 2015ApJ...810...65P Gao et al. Paper VIII. 2016ApJ...817..128G Cat. J/ApJ/817/128 Gao et al. Paper IX. 2017ApJ...834...52G This catalog.
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-May-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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