Program : A zoom into the nuclei of IC1459 and NGC7582

PI : H. Dejonghe (herwig.dejonghe@UGent.be)
CoIs : M. Baes, S. De Rijcke

Program description : We propose to use SINFONI to take K-band spectra
of the circumnuclear (3.2 arcsec)2 region of the nearby galaxies
IC1459 and NGC7582. Both have prototypical Seyfert 2 nuclei, which can
serve to guide the AO module, such that we can achieve a resolution of
0.1 arcsec, corresponding to a linear distance of the order of 5
pc. We will map the distribution and kinematics of the molecular and
ionized hydrogen with the H2 S(1-0) and Br gamma lines over the entire
field of view. This will allow us to constrain the size and
orientation of the putative molecular torus. Moreover, since the
nuclei have relatively strong stellar absorption features, we can
study the kinematics of the nuclear stellar population with the
CO(2-1) bandhead, well within the sphere of influence of the central
black hole. The combination of gas and stellar kinematics will be used
to determine the black hole mass.

SINFONI setup : 3.2x3.2 arcsec FOV, 100 mas pixels
               K band

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IC1459 : The bright nucleus of the galaxy serves as AO star
         RA   22 57 10.604
      DEC -36 27 44.000
     OB names : IC1459
                    IC1459-0
                    IC1459-1
                    IC1459-2
                    IC1459-3
                    IC1459-4
     Finding chart : find_IC1459.jpg
         0.2" jitter box
     DIT = 810 sec
     NDIT = 2 on object, 1 on sky
     1 AB cycle

Remarks: The 6 OBs on this object are identical.

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NGC7582 : The bright nucleus of the galaxy serves as AO star
          RA   23:18:23.782
       DEC -42:22:16.640
      OB names : NGC7582
                 NGC7582-0
                 NGC7582-1
                 NGC7582-2
                 NGC7582-3
                 NGC7582-4
      Finding chart : findNGC7582.jpg
          0.2" jitter box
      DIT = 800 sec
      NDIT = 2 on object, 1 on sky
          1 AB cycle

Remarks:
(1) The 6 OBs on this object are identical.
(2) The nucleus of NGC7582 can appear slightly extended, as there
    is a central red starbursting ring of about 1"x2". The actual
    nucleus is very bright though.

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HD202589 : K4 III velocity template (mK ~ 7.0)
           RA   22:01:41.440
           DEC -19:13:49.800
           OB name : HD209170 M2III
       no AO
       1" jitter box
       DIT = 1 sec
       NDIT = 3 on object, 1 on sky

HD209170 : M2 III velocity template (mK ~ 6.0)
           RA   21:17:14.663
           DEC -15:58:31.690   
       no AO
       1" jitter box
       DIT = 1 sec
       NDIT = 3 on object, 1 on sky

Remarks: With the 1" jitter box and NDIT=3, the light of a velocity
template star, without AO, will cover most of the slitlets. This way,
we can check whether the instrumental broadening profile varies from
slitlet to slitlet. If so, we can correct for this and construct one
velocity template spectrum for each slitlet. We would therefore ask to
execute the OBs HD202589 and HD209170 only if the seeing is worse than
1" FWHM so as to disperse the starlight over as many slitlets as
possible.

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