EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 538 (February 2012) A&A, 538 (2012) A152 Full HTML
Free Access

Table 3

Radio properties of Seyfert galaxies without detected H2O maser.*

Source Type D S 6 S 20 Reference α rms-H2O UL-H2O
NGC 777 2 66.5 2.63 3.19 Ho01 0.16 6.9 1.2
NGC 788 2 54.1 1.2 2.2 Ulv89 0.50 3 0.6
NGC 1058 2 9.2  <0.12 6.9 Ho01, NVSS 20.0 –0.1
NGC 1097 1.0 16.5 3.8 249.2 Mor99, NVSS 3.47 15 0.3
NGC 1241 2 53.8 6.8 The00 7.4 1.0
NGC 1275 1.5 70.1 20700 23200 Ho01 0.09 9.5 1.4
NGC 1365 1.8 21.5 0.9 2.5 San95 0.85 2.4 –0.2
NGC 1358 2 53.6 7.04 17.9 Ho01 0.78 3 0.6
NGC 1433 2 13.3  <3.0 Sad95 15 0.1
NGC 1566 1.5 19.4  <6.0 Sad95 12 0.4
NGC 1667 2 61.2 1.19 4.08 Ho01 1.02 6.6 1.1
NGC 2685 2 16.2  <0.13  <1.0 Ho01, FIRST 19.0 0.4
NGC 2655 2 24.4 44.1 101 Ho01 0.69 5.2 0.2
NGC 2992 1.9 34.1 7.0 226.2 Sad95, NVSS 2.89 2.3 0.1
NGC 3031 1.5 3.6 91.2 79.2 Ho01 –0.12 3.0 –1.7
NGC 3081 2 34.2 0.9 2.5 Ulv89 0.85 2.3 0.1
NGC 3147 2 40.9 10.1 13.6 Ho01 0.25 6.3 0.7
NGC 3185 2 21.3 0.47 3.16 Ho01, FIRST 1.58 3 –0.2
NGC 3227 1.5 20.6 25.9 78.2 Ho01 0.92 2.6 –0.2
NGC 3254 2 23.6  <0.12  <0.84 Ho01, FIRST 28 0.9
NGC 3281 2 44.7 26.7 61.2 Ulv89 0.69 3.3 0.5
NGC 3486 2 7.4  <0.12  <0.95 Ho01, FIRST 21 –0.2
NGC 3516 1.2 38.9 6.03 29.8 Ho01 1.33 4 0.5
IRAS11215 2 62.4 18 52.1 Sch01, NVSS 0.88 20 1.6
NGC 3783 1.2 36.1 13 43.6 Sad95, NVSS 1.01 5 0.5
NGC 3941 2 18.9 0.19  <0.97 Ho01, FIRST 22 0.6
NGC 3976 2 37.7 0.41  <0.95 Ho01, FIRST 16 1.1
NGC 3982 1.9 17.0 1.79 3.56 Ho01 0.57 3.0 –0.4
NGC 4138 1.9 17.0 0.78 0.45 Ho01 –0.46 2.4 -0.5
NGC 4168 1.9 16.8 5.24 4.37 Ho01 –0.15 15.0 0.3
NGC 4235 1.2 35.1 5.61 5.05 Ho01 –0.09 4.2 0.4
NGC 4378 2 35.1 0.21  <0.94 Ho01, FIRST 15.0 1.0
NGC 4395 1.8 4.6 0.80 1.68 Ho01 0.62 3.8 –1.4
NGC 4472 2 16.8 65.2 113 Ho01 0.46 17.0 0.4
NGC 4477 2 16.8 0.18  <0.97 Ho01, FIRST 4.2 –0.2
NGC 4501 2 16.8 1.14 2.06 Ho01 0.49 3.0 –0.4
NGC 4507 2 59.6 10.8 66.1 Bra98, NVSS 1.50 9.8 1.2
NGC 4565 1.9 9.7 2.72 2.31 Ho01 –0.14 4.6 –0.7
NGC 4579 1.9 16.8 43.1 27.8 Ho01 –0.36 3.0 –0.4
NGC 4593 1.0 41.3 1.6 2.1 Ulv84b 0.23 4.3 0.6
NGC 4594 1.9 20.0 120 93.4 Sad95, NVSS –0.21 13.0 0.4
IC 3639 2 35.3 20 87.9 Sad95, NVSS 1.23 18.0 1.1
NGC 4639 1.0 16.8 0.15  <0.84 Ho01, FIRST 16 0.4
NGC 4698 2 16.8 0.23  <1.01 Ho01, FIRST 16 0.4
NGC 4725 2 12.4  <0.17  <0.97 Ho01, FIRST 4.1 –0.5
NGC 4941 2 16.8 4.3 14.2 Ulv89 0.99 3 –0.4
NGC 4939 2 46.6 0.7 2.3 Vil90 0.99 8.3 1.0
NGC 5005 2 21.3 2.7 24.6 Vil90 1.84 10 0.4
NGC 5033 1.5 18.7 5.68 11.7 Ho01 0.60 4.1 –0.1
NGC 5128 2 4.3 6456 Sle94 3 –1.5
NGC 5135 2 57.7 58.8 163.2 Ulv89 0.85 3 0.7
NGC 5273 1.5 21.3 1.31 2.13 Ho01 0.40 12 0.4
NGC 5395 2 46.7 0.19  <0.92 Ho01, FIRST 4.1 0.7
NGC 5427 2 40.4 2.5 7.54 Mor99, FIRST 0.92 3 0.4
NGC 5631 2 32.7 0.29 0.43 Ho01 0.33 4.1 0.3
NGC 5899 2 42.8 4.0 10.35 Dia09, FIRST 0.79 3 0.4
NGC 6221 2 19.3  <1.0 Sad95 11 0.3
NGC 6814 1.5 25.6 20 49.7 Sad95, NVSS 0.76 5.8 0.3
NGC 6951 2 24.1 9.05 25.5 Ho01 0.86 3 –0.1
MRK 509 1.2 143.8 1.8 18.6 Nef92, NVSS 1.94 2.7 1.4
NGC 7130 2 68.7 38 189.7 Sad95, NVSS 1.34 16 1.6
NGC 7172 2 37.6 11.7 36.8 Mor99, NVSS 0.95 6.7 0.7
NGC 7213 1.5 24.9 207 Bra98 14 0.6
NGC 7314 1.9 20.8 2.7 31.0 Mor99, NVSS 2.03 7.4 0.2
NGC 7410 2 24.8 1.4 36.8 Con98, NVSS 2.72 14 0.6
NGC 7469 1.2 67.0 21  <0.88 Sad95, FIRST 2.9 0.8
NGC 7496 2 23.1 3.8 The00 15 0.6
NGC 7582 2 22.0 69 Sad95 10.9 0.4
NGC 7590 2 22.0  <0.3 The00 15 0.6
NGC 7743 2 24.4 3.03 5.52 Ho01 0.50 3 0.0

Notes. 

(*)

Radio properties for the nearby nonmaser Seyfert galaxy sample, including 16 Seyfert 1s (type 1–1.5) and 54 Seyfert 2s (type 1.8–2.0). Column 1: Source; Col. 2: Seyfert type, optical classification from Maiolino & Rieke (1995) or Ho et al. (1997); Col. 3: distance in Mpc, taken from Diamond-Stanic et al. (2009); Col. 4: 6 cm radio flux density in mJy; Col. 5: 20 cm radio flux density in mJy; Col. 6: references for Cols. 4 and 5 (For sources without available 20 cm data in the literature, their 20 cm data are taken from the NVSS or FIRST catalog.): Ho01: Ho & Ulvestad (2001); Ulv89: Ulvestad & Wilson (1989); Mor99: Morganti et al. (1999); The00: Thean et al. (2000); Sad95: Sadler et al. (1995); San95: Sandqvist et al. (1995); Sch01: Schmitt et al. (2001); Bra98: Bransford et al. (1998); Ulv84b: Ulvestad & Wilson (1984b); Vil90: Vila et al. (1990); Sle94: Slee et al. (1994); Dia09: Diamond-Stanic et al. (2009); Nef92: Neff & Hutchings (1992); Con98: Condon et al. (1998); Col. 7: the spectral index between 6 cm and 20 cm, derived from the values in Cols. 4 and 5, assuming S ∝ ν−α; Col. 8: rms values of H2O maser data in units of mJy for a 20 km s-1 wide channel, which were taken from MCP and HoME webpages. GBT observations are taken whenever possible and in case of several observations the GBT spectrum with the lowest rms value was selected; Col. 9: estimated 5σ upper limits of H2O maser luminosity (log    LH2O, in units of L⊙) for nonmaser Seyfert galaxies, from the rms value (Col. 8). See details in Sect. 2.2.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.