Supermassive black hole mass measurements for NGC 1300 and 2748 based on Hubble Space Telescope emission‐line gas kinematics

  title={Supermassive black hole mass measurements for NGC 1300 and 2748 based on Hubble Space Telescope emission‐line gas kinematics},
  author={J. Atkinson and J. L. Collett and Alessandro Marconi and David J. Axon and Almudena Alonso-Herrero and Dan Batcheldor and James Binney and Alessandro Capetti and C. M. Carollo and Linda Lou Dressel and Holland Cole Ford and Joris Gerssen and M. A. Hughes and Duccio Macchetto and Witold Maciejewski and Michael Merrifield and Claudia Scarlata and William B. Sparks and Massimo Stiavelli and Zlatan I. Tsvetanov and Roeland P. van der Marel},
  journal={Monthly Notices of the Royal Astronomical Society},
We present Space Telescope Imaging Spectrograph emission-line spectra of the central regions of the spiral galaxies NGC 1300 and 2748. From the derived kinematics of the nuclear gas we have found evidence for central supermassive black holes in both galaxies. The estimated masses of the black holes in NGC 1300 and 2748 are (6.6 +6.3) × 10 7 and (4.4 +3.5) × 10 7 M� , respectively (both at the 95 per cent confidence level). These two black hole mass estimates contribute to the poorly sampled low… 
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