J/ApJ/661/L143 Star formation rate in Seyfert galaxies (Wang+, 2007) ================================================================================ Suppressed star formation in circumnuclear regions in Seyfert galaxies. Wang J.-M., Chen Y.-M., Yan C.-S., Hu C., Bian W.-H. =2007ApJ...661L.143W ================================================================================ ADC_Keywords: Active gal. nuclei ; Models, evolutionary Keywords: galaxies: active - galaxies: Seyfert - galaxies: starburst Abstract: Feedback from black hole activity is widely believed to play a key role in regulating star formation and black hole growth. A long-standing issue is the relation between star formation and the fueling of the supermassive black holes in active galactic nuclei (AGNs). We compile a sample of 57 Seyfert galaxies to tackle this issue. We estimate the surface densities of gas and star formation rates in circumnuclear regions (CNRs). Comparing them with the well-known Kennicutt-Schmidt (K-S) law, we find that the star formation rates (SFRs) in the CNRs of most Seyfert galaxies are suppressed in this sample. Feedback is suggested to explain the suppressed SFRs. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 76 57 The Seyfert Galaxy Sample refs.dat 87 23 References -------------------------------------------------------------------------------- See also: J/ApJ/453/616 : JHKL photometry of 12 micron galaxy sample (Spinoglio+ 1995) J/ApJ/613/682 : AGN central masses and broad-line region sizes (Peterson+ 2004) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 A2 --- Type [S12] Seyfert galaxy type (S1 or S2) 4- 14 A11 --- Name Object name 16- 20 F5.3 --- z Redshift 22- 25 I4 km/s FWHM ? H{beta} FWHM/stellar velocity dispersion (2) 27 A1 --- f_FWHM [b] Indicates FWHM from [O III] line 29- 33 F5.2 [10-7W] logL Log of 5100 Angstrom luminosity (3) 35- 39 A5 --- r_FWHM References for FWHM and LogL, in refs.dat file 41- 44 F4.2 [solMass] logBH Log of black hole mass 46 A1 --- f_logBH [ac] Origin of LogBH (4) 48- 52 F5.2 solMass/yr dM/dt Black hole accretion rate 54- 57 F4.2 [solMass/pc2] logSig Log of gas surface density 59- 61 I3 [10+32W/kpc2] logPAH Log of 3.3 micron PAH surface brightness (in 10^39^erg/s/kpc^2^) 63- 66 F4.2 kpc R Starburst region scale 68- 71 F4.2 [solMass/yr/kpc2] logUSFR Log of upper surface density of star formation rates 73- 76 F4.2 [solMass/yr/kpc2] logLSFR Log of lower surface density of star formation rates -------------------------------------------------------------------------------- Note (2): Stellar velocity dispersion for Seyfert 2. Note (3): Deduced from extrapolation of F_{nu}_{prop.to}{nu}^-0.5^ or [OIII] (5007{AA}). In units of erg/s. Note (4): Flag as follows: a = the blackhole mass are directly taken from Peterson et al. (2004, Ca. J/ApJ/613/682). c = based on M_BH_-M_bulge_ relation: M_bulge_(F01475-0740)=-18.80; M_bulge_(NGC 3660)=-18.38 -------------------------------------------------------------------------------- Byte-by-byte Description of file: refs.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 I2 --- Ref Reference number 4- 22 A19 --- BibCode BibCode 24- 54 A31 --- Aut Author's name 57- 87 A31 --- Com Comments -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Patricia Vannier [CDS] 15-Apr-2009