Research Interests

I am a theorist interested in a broad range of problems related to star formation, galaxy formation and evolution, and ISM physics. 

Over the last few years, my work has focused on:

1. •The formation and evolution of massive galaxies over cosmic time
   

2. •Molecular Clouds and the Interstellar Medium
   

3. •Star Formation
   

4. •The Stellar IMF
   

5. •Starbursts/AGN activity and co-evolution
   

6. •Galactic Winds and Outflows
   

7. •Radiative Transfer
   

8. •Protoplanetary Disks
   

If you’re interested beyond this, feel free to check out my publications (below).  Of course, you could always just ADS my name.

Refereed First and Second Author Publications

[24] “Why is the Milky Way X-factor Constant?”                                                                 arXiv    ADS

Narayanan, D., & Hopkins, P., MNRAS accepted; 2013, (arXiv/1210.2724)                        

[23] “Submillimetre Galaxies in a Hierarchical Universe: Number Counts,

Redshift Distribution, and Implications for the IMF”

Hayward, C., Narayanan, D., Keres, D., Jonsson, P., Hopkins, P., Cox, T.J., Hernquist, L.,

MNRAS 2013, 428, 3529                                                                                                          arXiv    ADS

[22] “The Cosmic Evolution of the IMF Under the Jeans Conjecture with

Implications for Bottom-Heavy Ellipticals”                                                                         arXiv     ADS

Narayanan, D., & Davé, R, MNRAS 2012, submitted (arXiv/1210.6037)

[21] “Galaxy Gas Fractions at High-Redshift: The Tension between

Observations and Cosmological Simulations”                                                                    arXiv   ADS

Narayanan, D., Bothwell, M., Davé, R, MNRAS 2012, 426, 1179

[20] “Dense Molecular Gas: A Sensitive Probe of Stellar Feedback Models”                   arXiv    ADS

Hopkins, P., Narayanan, D., Murray, N., Quataert, E., MNRAS 2012, submitted (arXiv/1209.0459)

[19] “Cosmological Implications of a Stellar Initial Mass Function that

Varies with the Jeans Mass in Galaxies”                                                                              arXiv    ADS

Narayanan, D. & Davé, R, MNRAS 2012, 423, 3601

[18] “A General Model for the CO-H2 Conversion Factor in Galaxies

          with Applications to the Star Formation Law”                                                            arXiv   ADS

Narayanan, D., Krumholz, M., Ostriker, E.C., Hernquist, L., MNRAS 2012, 421, 3127

[17] “The CO-H2 Conversion Factor in Disc Galaxies and Mergers”                                  arXiv  ADS

Narayanan, D., Krumholz, M., Ostriker, E.C., Hernquist, L., MNRAS 2011 418,664

[16] “Molecular Disk Properties in Early Type Galaxies”                                                     arXiv    ADS

Xu, X., Narayanan, D., Walker, C.K., ApJ, 721L, 112

[15] “The Kennicutt-Schmidt Star Formation Relation at z~2”                                            arXiv   ADS

Narayanan, D., Cox, T.J., Hayward, C., Hernquist, L., MNRAS 2011, 412, 287

[14] “A Physical Model for z~2 Dust Obscured Galaxies”                                                    arXiv    ADS

Narayanan, D., Dey, A., Hayward, C., Cox, T.J., Bussmann, R.S., Brodwin, M., Jonsson, P.,

Hopkins, P., Groves, B., Younger, J.D., Hernquist, L., MNRAS 2010, 407, 1701

[13] “The Formation of High Redshift Submillimetre Galaxies”                                           arXiv    ADS

Narayanan, D., Hayward, C., Cox, T.J., Hernquist, L., Jonsson, P., Younger, J.D., Groves, B.,

MNRAS 2010, 401,1613

[12] “The Star-Forming Molecular Gas in High Redshift Submillimetre Galaxies”            arXiv    ADS

Narayanan, D., Cox, T.J., Hayward, C., Younger, J.D., Hernquist, L., MNRAS 2009, 400,1919

[11] “Enhanced Dense Gas Fraction in Ultra-Luminous Infrared Galaxies”                       arXiv  ADS

Juneau, S., Narayanan, D., Moustakas, J., Shirley, Y., Bussmann, R., Kennicutt, R.,

Vanden Bout, P., 2009, ApJ, 707, 1217

[10] “The Star Formation Rate-Dense Gas Relation in the Nuclei of Nearby Galaxies”    arXiv    ADS

Narayanan, D., Cox, T.J., Hernquist, L., ApJ, 2008, 681, L77

[9] “The Star Formation Rate-Dense Gas Relation as Measured by HCN (J=3-2) Emission”  

                                                                                                                                                    arXiv    ADS

Bussmann, R., Narayanan, D., Shirley, Y., Juneau, S., Wu., J,  Solomon, P., Vandenbout, P.

Moustakas, J., Walker, C.K., 2008, ApJ, 681L, 73

[8] “Molecular Star Formation Rate Indicators in Galaxies”                                                arXiv    ADS

Narayanan, D., Cox, T.J., Shirley, Y., Davé, R., Hernquist, L., Walker, C.K., 2008, ApJ, 684,996

[7] “The Role of Galactic Winds on Molecular Gas Emission from Galaxy Mergers”        arXiv    ADS

Narayanan, D., Cox, T.J., Kelly, B., Davé, R., Hernquist, L., Di Matteo, T., Hopkins, P.,

Kulesa, C., Robertson, B., Walker, C.K., ApJS, 2008, 176, 331

[6] “The Nature of CO Emission in z~6 Quasars”                                                                  arXiv    ADS

Narayanan, D., Li, Y., Cox, T.J., Hernquist, L., Hopkins, P., Chakrabarti, S., Davé, R., Di Matteo, T.,

Gao, L., Kulesa, C., Robertson, B., Walker, C.K., ApJS, 2008, 174, 13

[5] “Molecular Line Emission from Gravitationally Unstable Protoplanetary Disks”         arXiv     ADS

Narayanan, D., Kulesa, C., Boss, A., Walker, C.K., ApJ, 2006, 647, 1426

[4] “Simulated Molecular Outflows in Galaxy Mergers with Embedded AGN”                   arXiv    ADS

Narayanan, D., Cox, T.J., Robertson, B., Davé, R., Di Matteo, T., Hernquist, L., Hopkins, P.,

Kulesa, C., Walker, C.K., ApJ, 2006, 642L, 107

[3] “[CI] 809 GHz Imaging of the NGC 6334 Complex”                                                                       ADS

Kim, S., Narayanan, D., 2006, PASJ, 58, 753

[2] “Warm-Dense Molecular Gas in the ISM of Starbursts, LIRGs and ULIRGs”                arXiv    ADS

Narayanan, D., Groppi, C., Kulesa, C., Walker, C.K., ApJ, 2005, 630, 269

[1] “Variability Tests for Intrinsic Absorption Lines in Quasar Spectra”                             arXiv    ADS

Narayanan, D., Hamman, F., Barlow, T., Burbidge, E.M., Cohen, R.D.,

Junkkarinen, V., Lyons, R., 2004, ApJ, 601, 715