In 2003 he acquired his Ph.D. (on Young stars and circumstellar disks) from the Stockholm Observatory. He went on to become a post-doctoral fellow at the
University of Toronto for 2.5 years before returning to Stockholm in 2007, where he now works as a research associate at the Stockholm Observatory. He is credited by the
Minor Planet Center with the discovery of 4
minor planets in 2000.[1]
Berger, E.; Rutledge, R. E.; Reid, I. N.; Bildsten, L.; Gizis, J. E.; Liebert, James; Martín, Eduardo L.; Basri, Gibor; Jayawardhana, R.; Brandeker, A.; Fleming, T. A.; Johns-Krull, C. M.; Giampapa, M. S.; Hawley, S. L.; Schmitt, J. H. M. M. (10 July 2005). "The Magnetic Properties of an L Dwarf Derived from Simultaneous Radio, X‐Ray, and Hα Observations". The Astrophysical Journal. 627 (2): 960–973.
arXiv:astro-ph/0502384.
Bibcode:
2005ApJ...627..960B.
doi:
10.1086/430343.
S2CID119416828.
Jayawardhana, Ray; Coffey, Jaime; Scholz, Alexander; Brandeker, Alexis; van Kerkwijk, Marten H. (10 September 2006). "Accretion Disks around Young Stars: Lifetimes, Disk Locking, and Variability". The Astrophysical Journal. 648 (2): 1206–1218.
arXiv:astro-ph/0605601.
Bibcode:
2006ApJ...648.1206J.
doi:
10.1086/506171.
S2CID14630393.
Mentuch, Erin; Brandeker, Alexis; van Kerkwijk, Marten H.; Jayawardhana, Ray; Hauschildt, Peter H. (20 December 2008). "Lithium Depletion of Nearby Young Stellar Associations". The Astrophysical Journal. 689 (2): 1127–1140.
arXiv:0808.3584.
Bibcode:
2008ApJ...689.1127M.
doi:
10.1086/592764.
S2CID16859859.