J
Julia Martikainen
Researcher at University of Helsinki
Publications - 21
Citations - 245
Julia Martikainen is an academic researcher from University of Helsinki. The author has contributed to research in topics: Light scattering & Scattering. The author has an hindex of 8, co-authored 13 publications receiving 147 citations.
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Journal ArticleDOI
Rationale for BepiColombo Studies of Mercury’s Surface and Composition
David A. Rothery,Matteo Massironi,G. Alemanno,Océane Barraud,Sebastien Besse,Nicolas Bott,Rosario Brunetto,Emma J. Bunce,Paul K. Byrne,Fabrizio Capaccioni,Maria Teresa Capria,Cristian Carli,Bernard Charlier,Thomas Cornet,Gabriele Cremonese,Mario D'Amore,M. Cristina De Sanctis,A. Doressoundiram,Luigi Ferranti,Gianrico Filacchione,Valentina Galluzzi,Lorenza Giacomini,Manuel Grande,L. Guzzetta,Joern Helbert,Daniel Heyner,Harald Hiesinger,Hauke Hussmann,Ryuku Hyodo,Tomas Kohout,A. S. Kozyrev,Maxim Litvak,Alice Lucchetti,Alexey Malakhov,C. C. Malliband,Paolo Mancinelli,Julia Martikainen,Adrian Martindale,Alessandro Maturilli,Anna Milillo,I. G. Mitrofanov,Maxim Mokrousov,Andreas Morlok,Karri Muinonen,Karri Muinonen,Olivier Namur,Alan Owens,Larry R. Nittler,J. S. Oliveira,J. S. Oliveira,Pasquale Palumbo,Maurizio Pajola,David L. Pegg,Antti Penttilä,Romolo Politi,Francesco Quarati,Cristina Re,A. B. Sanin,Rita Schulz,Claudia Stangarone,Aleksandra N. Stojic,Vladislav Tretiyakov,Timo Väisänen,Indhu Varatharajan,Iris Weber,John Wright,Peter Wurz,Francesca Zambon +67 more
TL;DR: BepiColombo has a larger and in many ways more capable suite of instruments relevant for determination of the topographic, physical, chemical and mineralogical properties of Mercury's surface than the suite carried by NASA's MESSENGER spacecraft as mentioned in this paper.
Journal ArticleDOI
Streak detection and analysis pipeline for space-debris optical images
Jenni Virtanen,Jonne Poikonen,Tero Säntti,Tuomo Komulainen,J. Torppa,Mikael Granvik,Mikael Granvik,Karri Muinonen,Karri Muinonen,H. Pentikäinen,Julia Martikainen,Jyri Näränen,J. Lehti,Tim Flohrer +13 more
TL;DR: An automated streak detection and processing pipeline is developed and demonstrated its performance with an extensive database of semisynthetic images simulating streak observations both from ground-based and space-based observing platforms.
Journal ArticleDOI
SN 2020bvc: A Broad-line Type Ic Supernova with a Double-peaked Optical Light Curve and a Luminous X-Ray and Radio Counterpart
Anna Y. Q. Ho,Shrinivas R. Kulkarni,Daniel A. Perley,S. Bradley Cenko,Alessandra Corsi,Steve Schulze,Ragnhild Lunnan,Jesper Sollerman,Avishay Gal-Yam,Shreya Anand,Cristina Barbarino,Eric C. Bellm,Rachel Bruch,Eric Burns,Kaushik De,Richard Dekany,Alexandre Delacroix,Dmitry A. Duev,D. D. Frederiks,Christoffer Fremling,Daniel A. Goldstein,V. Zach Golkhou,Matthew J. Graham,David Hale,Mansi M. Kasliwal,T. Kupfer,Russ R. Laher,Julia Martikainen,Frank J. Masci,James D. Neill,A. Ridnaia,Ben Rusholme,V. G. Savchenko,David L. Shupe,Maayane T. Soumagnac,Nora L. Strotjohann,Dmitry S. Svinkin,Kirsty Taggart,Leonardo Tartaglia,Lin Yan,Jeffry Zolkower +40 more
TL;DR: In this paper, optical, radio, and X-ray observations of SN 2020bvc (ASASSN-20bs, ZTF 20aalxlis) were presented, which is the first double-peaked Ic supernova without a gamma-ray burst (GRB) trigger.
Journal ArticleDOI
Ray optics for absorbing particles with application to ice crystals at near-infrared wavelengths
Hannakaisa Lindqvist,Julia Martikainen,Jukka Räbinä,Jukka Räbinä,Antti Penttilä,Karri Muinonen,Karri Muinonen +6 more
TL;DR: In this paper, a ray-optics code SIRIS with inhomogeneous plane waves inside an absorbing particle was updated to take into account the propagation of light as inhomogeneities inside the absorbing particle.
Journal ArticleDOI
Spectral modeling of meteorites at UV-vis-NIR wavelengths
Julia Martikainen,Antti Penttilä,Maria Gritsevich,Maria Gritsevich,Hannakaisa Lindqvist,Karri Muinonen,Karri Muinonen +6 more
TL;DR: In this paper, a ray-optics code is used to simulate light scattering by Gaussian-random-sphere particles large compared to the wavelength of the incident light and accounts for internal diffuse scatterers.