4800 Oak Grove DrivePasadena, CA 91109
I am an astronomer doing astrophysics, astrochemistry, astrobiology, and planetary science. Currently, I am an Assistant Professor in the School of Earth and Planetary Sciences at NISER Bhubaneswar, India, and a visiting researcher at the NASA Jet Propulsion Laboratory, California Institute of Technology, USA.
I am interested in the physics and chemistry of simple and complex organic molecules in space from interstellar clouds, the birthplaces of stars, through to protoplanetary disks. These organics eventually seed planetary surfaces and atmospheres and play a role in the "Origin of Life."
I use numerical models, single dish telescope observations at (sub-) millimeter/centimeter wavelengths (e.g., NASA DSN, IRAM 30m, GBT, NRO 45m and ARO 12m), interferometric observations at (sub-) millimeter wavelengths (e.g., ALMA and NOEMA), space telescope observations at near, mid and far-infrared wavelengths (JWST NIRSpec, JWST MIRI, Spitzer and Herschel science archive) along with SOFIA observations at Terahertz frequencies for my research.
I am a co-Investigator for JWST MIRI GTO program to study physics and chemistry of proto-stellar binaries in Perseus. I am also leading a SOFIA Cycle 7 and various ALMA Cycle 6/7 proposals.
Currently, I am combining millimeter and sub-millimeter observations to study the evolution of volatile molecules in protoplanetary disks with the goal of determining the amount of volatile carbon, nitrogen, and oxygen available to form planets and to compare with the exoplanetary atmospheric compositions derived either from inverse retrieval code or chemical kinetics code.
I am also interested in linking disk models and observations to the origin of comets and have a strong desire to understand the source of the observed organics on them.
I also have a deep interest in the future development (technology) and scientific capabilities of WFIRST, SPICA, OST, SPHEREx, and HabEx mission (together with ground based facilities such as TMT and SKA) to revolutionize our understanding of planetary system formation and complete the census of the outer reaches of the Solar System.
Observing the signatures of planet formation at high spatial resolution with ALMA and JWST (Future); Connecting protoplanetary disk and exoplanet atmospheric composition; Physics and chemistry of the interstellar medium, including pre-stellar cores to protoplanetary disks, Linking astrophysics with Solar System Science and astro(cosmo)-chemistry; Future development and scientific capabilities of SKA, TMT, OST and HabEx to revolutionize our understanding of planetary system formation.
30. T. Suzuki, Y. Shinnaka, T. Shibata, Y. Shilbaike, L. Majumdar, H. Nomura, H. Minamoto, 2019, Possibility of condensation of glycine near the surface of comet 67P/C-G, The Astrophysical Journal, arxiv: 1901.05170
29. V. Wakelam, E. Chapillon, A. Dutrey, S. Guiloteau, W. Iqbal, A. Coutens, L. Majumdar, 2019, Protoplanetary disks: Sensitivity of the chemical composition to various model parameters, Monthly Notices of the Royal Astronomical Society, 484, 1573
28. Y. Seo, L. Majumdar, P. F. Goldsmith, Y. Shirley, K. Willacy et al., 2019, An ammonia spectral map of the L1495-B218 filaments in the Taurus molecular cloud: II. Tracing recently accreted gas in CCS and HC7N and three modes of star formation in the filaments, The Astrophysical Journal, 871, 134
27. I. Andron, P. Gratier, L. Majumdar, T. Vidal, A. Coutens J. C. Loison, and V. Wakelam, 2018, Methyl cyanide (CH3CN) and propyne (CH3CCH) in the low mass protostar IRAS16293-2422, Monthly Notices of the Royal Astronomical Society, 481, 5659
26. K. Taniguchi, M. Saito, L. Majumdar et al., 2018, Chemical Composition in Three High-Mass Star-Forming Regions Containing Hot Cores Associated with the 6.7 GHz Methanol Masers, The Astrophysical Journal, 866, 150
25. T. Suzuki, L. Majumdar, M. Ohishi, M. Saito, T. Hirota, V. Wakelam, 2018, An expanded gas-grain model for interstellar glycine, The Astrophysical Journal, 863, 51
24. N. T. Phuong, E. Chapillon, L. Majumdar, S. Guilloteau, V. Pietu, V. Wakelam, P. N. Diep, T. Beck, J. Barry, 2018, The first detection of H2S in protoplanetary disk: The dense GG Tau A ring, Astronomy and Astrophysics Letter, 616, L5
23. T. Suzuki, M. Ohishi, M. Saito, T. Hirota, L. Majumdar, V. Wakelam, 2018, The difference in abundance between N-bearing and O-bearing species in high-mass star forming regions, The Astrophysical Journal Supplementary Series, 237, 3
22. L. Majumdar, P. Gratier, V. Wakelam, E. Caux, K. Willacy, M. E. Ressler, 2018, Detection of HOCO+ in the protostar IRAS 16293-2422, Monthly Notices of the Royal Astronomical Society, 477, 525
21. L. Majumdar, J. C. Loison, M. Ruaud, P. Gratier, V. Wakelam, A.Coutens, 2018, Methyl isocyanate: An important missing organic in current astrochemical networks, Monthly Notices of the Royal Astronomical Society Letters, 473, L59
20. L. Majumdar, P. Gratier, M. Ruaud, V. Wakelam, C. Vastel, O. Sipila, F. Hersant, A. Dutrey, S. Guiolloteau, 2017, Chemistry of TMC-1 with multiply deuterated species and spin chemistry of H2, H2+, H3+ and their isotopologues, Monthly Notices of the Royal Astronomical Society, 466, 4470.