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Joseph Roser

Joseph Roser

Research Associate

Contents

Affiliation: SETI Institute

Email: Joseph.E.Roser@nasa.gov

Phone: 650-604-1735

Professional Biography

Dr. Joseph Roser (SETI Institute) is an experimental molecular physicist with extensive experience in laboratory astrophysics using spectroscopic and surface science experimental techniques. Dr. Roser is actively conducting experimental research with the Astrochemistry Laboratory at NASA-Ames Research Center and is a science collaborator with the JWST Early Release Science project “Radiative Feedback from Massive Stars as Traced by Multiband Imaging and Spectroscopic Mosaics.” His current and past research projects include:

  • Infrared complex index of refraction measurements of ammonia ice and ammonia/water ice mixtures
  • Infrared spectroscopy of polycyclic aromatic hydrocarbon clusters using the matrix isolation technique
  • Investigating the formation of carbon dioxide from carbon monoxide reacting with oxygen atoms within a water ice matrix
  • Measuring hydrogen atomic recombination rates on surfaces of interstellar dust grain analogues

Dr. Roser is also the lead author of the Planetary Science and Astrobiology Decadal Survey white paper titled “Optical Constants of Outer Solar System Materials and Radiative Transfer Modeling.”

Education

Ph.D. in Physics, Syracuse University, 2004
B.S. in Physics and Mathematics, Syracuse University, 1996

Selected Publications

Cartwright, R. J., Nordheim, T. A., Cruikshank, D. P., Hand, K. P., Roser, J. E., Grundy, W. M., Beddingfield, C. B. & Emery, J. P. 2020, “Evidence for Sulfur-bearing Species on Callisto’s Leading Hemisphere: Sourced from Jupiter’s Irregular Satellites or Io?” ApJ Letters, 902, L38

Cartwright, R. J., Beddingfield, C. B., Nordheim, T. A., Roser, J., Grundy, W. M., Hand, K. P., Emery, J. P., Cruikshank, D. P., & Scipioni, F. 2020, “Evidence for Ammonia-bearing Species on the Uranian Satellite Ariel Supports Recent Geologic Activity,” ApJ Letters, 898, L22

Roser, J. & Ricca, A. 2019, “PAH Clusters as Interstellar Very Small Grains,” in Laboratory Astrophysics: From Observations to Interpretation, Proc. IAU, 15 (S350), eds. F. Salama & H. Linnartz (Cambridge University Press), 415

Ricca, A., Roser, J. E., Peeters, E., & Boersma, C. 2019, “Polycyclic Aromatic Hydrocarbons with armchair edges: Potential emitters in class B sources,” ApJ, 882, 56

Ricca, A., Bauschlicher, C. W., Jr., Roser, J. E., & Peeters, E. 2017, “Polycyclic Aromatic Hydrocarbons with Straight Edges and the 7.6/6.2 and 8.6/6.2 Intensity Rations in Reflection Nebulae,” ApJ, 854, 115

Roser, J. E. & Ricca, A. 2015, “Polycyclic Aromatic Hydrocarbon Clusters as Sources of Interstellar Infrared Emission,” ApJ, 801, 108

Cook, A. M., Ricca, A., Mattioda, A. L., Bouwman, J., Roser, J., Linnartz, H., Bregman, J., & Allamandola, L. J. 2015, “Phtochemistry of Polycyclic Aromatic Hydrocarbons in Cosmic Water Ice: The Role of PAH Ionization and Concentration,” ApJ, 799, 14

Roser, J. E., Ricca, A., & Allamandola, L. J. 2014, “Anthracene Clusters and the Interstellar Infrared Emission Features,” ApJ, 783, 97

Roser, J. E., & Allamandola, L. J. 2010, “Infrared Spectroscopy of Naphthalene Aggregation and Cluster Formation in Argon Matrices,” ApJ, 722, 1932

Vidali, G., Pirronello, V., Li, L., Roser, J., Manicò, G., Congiu, E., Mehl, H., Lederhendler, A., Perets, H. B., Brucato, J. R., & Biham, O. 2007, “Analysis of Molecular Hydrogen Formation on Low-Temperature Surfaces in Temperature Programmed Desorption Experiments,” JPCA, 111, 12611

Perets, H., Biham, O., Manicò, G, Pirronello, V., Roser, J., Swords, S., & Vidali, G. 2005, “Molecular Hydrogen Formation in Ice Under InterStellar Conditions,” ApJ 627, 850

Vidali, G., Roser, J. E., Manicò, G., & Pirronello, V. 2004, “Experimental Study of the Formation of Molecular Hydrogen and Carbon Dioxide on Dust Grain Analogues,” Adv. Space Res., 33, 6

Roser, J. E., Manicò, G., Pirronello, V., & Vidali, G. 2002, “Formation of Molecular Hydrogen on Amorphous Water Ice: Influence of Morphology and Ultraviolet Exposure,” ApJ, 581, 276

Roser, J. E., Vidali, G., Manicò, G., & Pirronello, V. 2001, “Formation of Carbon Dioxide by Surface Reactions on Ices in the Interstellar Medium,” ApH, 555, L61