• The Fueling and Evolution of AGN: Internal and External Triggers (Invited Review, Chapter 6 : Jogee, S. 2006, in Physics of Active Galactic Nuclei at all Scales, Lecture Notes in Physics, Vol. 693, Eds. D. Alloin, R. Johnson, and P. Lira (Springer: Berlin Heidelberg), 143)

• The Central Region of Barred Galaxies: Molecular Environment, Starbursts, and Secular Evolution
  (Jogee, S., Scoville, N., & Kenney, J.~D.~P. 2005, Apj, 630, 837)

• Gas Dynamics in NGC 5248: Fueling a Circumnuclear Starburst Ring
  (Jogee, S., Shlosman, I., Laine, S., Englmaier, P., Scoville, N. Z., et al 2002, ApJ, 575, 156)

• Discovery and Implications of a New Large-Scale Stellar Bar in NGC 5248
  (Jogee, S., Knapen, J. H., Laine, S., et al 2002, ApJL, 570, L55)

• A Gas-rich Nuclear Bar Fueling a Powerful Central Starburst in NGC 2782
  (Jogee, S., Kenney, J. D. P., \& Smith, B. J. 1999, ApJ, 526, 665)

• The remarkable starburst-driven outflow in NGC 2782
  (Jogee, S., Kenney, J. D. P., \& Smith, B. J. 1998, ApJL, 494, L185)

• Molecular Gas in The Central Kpc of Starbursts and AGN
  (Jogee, S., Baker, A. J., Sakamoto, K., Scovile, N. Z., & Kenney, J. D. P. 2001 (astro-ph/0201209))

The molecular gas in active and inactive nuclei survey or MAIN survey (Jogee, Baker, Sakamoto, Scoville) is the largest interferometric radio survey done to date of molecular gas in active and inactive galactic nuclei.The survey is a combination of high resolution (1"-2" or 100-200 pc) CO(1-0) and C0(2-1) observations, along with HCN(1-0) observations take over 2000--2003 at Caltech's OVRO mm array, combined with three published high resolution surveys : the Sakamoto et al. (1999) CO(1-0) survey of CO-luminous spirals,the Jogee et al (1999; 2005) CO (1-0) survey of starbursts and non-starbursts, and the Baker (2000) CO (1-0) and CO (2-1) survey of AGN with broad Halpha emission. The sample consists of 44 nearby moderately inclined galaxies, which host active (AGN) and inactive (IGN) galactic nuclei and show an order of magnitude variation in star formation efficiency. The goal of the survey is to explore physical conditions and dynamical properties of the molecular gas, and constrain the drivers of the activity levels. In particular

• If all galaxies harbor central black holes, then why do only some galaxies show active nuclei? Are the distribution, kinematics, and properties of the molecular gas different in active (AGN) and inactive (IGN) galactic nuclei?

• Do active (AGN) and inactive (IGN) galactic nuclei differ in the stellar potential in terms of non-axisymmetric features, such as nuclear bars, nuclear spirals, etc, that may help to fuel AGN?

• Do active (AGN) and inactive (IGN) galactic nuclei differ in terms of circumnuclear star formation rate and gas mass fraction? One hypothesis is that a high circumnuclear gas mass fraction can trigger efficient circumnuclear star formation which starves a black hole or washes out its accretion spectrum. The low Toomre Q values in circumnuclear regions of high star formation efficiency (Jogee 2001; Jogee et al 2006 ), the high Q values in several Seyfert, and the low molecular gas mass fraction (Sakamoto et al. 1999) in several AGN lend some support to this hypothesis.

• Why do galactic nuclei show an order of magnitude variation in star formation efficiency?