Dr. Ritesh Kumar Mishra

Profile

Academic positionLecturer, Assistant Professor, Researcher
Research fieldsGeochemistry (Inorganic, Organic, Biological),Astrophysics
KeywordsShort-lived Now extinct Chronology, Early solar system, meteorites, ion microphobe, short-lived radionuclides

Current contact address

CountryIndia
CityAhmedabad
InstitutionPhysical Research Laboratory
InstitutePlanetary Sciences and Planetary Explorations
Homepagehttps://www.prl.res.in/

Host during sponsorship

Prof. Dr. Mario TrieloffInstitut für Geowissenschaften, Ruprecht-Karls-Universität Heidelberg, Heidelberg
Start of initial sponsorship01/06/2016

Programme(s)

2014Humboldt Research Fellowship Programme for Postdocs

Publications (partial selection)

2023Mishra, Ritesh Kumar and Marhas, Kuljeet Kaur and Trieloff, Mario: 26Al-26Mg isotopic studies in some CAIs and chondrules from unequilibrated chondrites. In: Current Science, 125, 2023, 191--203
2021Mishra, RK and Marhas, KK and Chaussidon, M: Multiple Episodes of Superflares from Our Nascent Sun: Evidences from a Canonical CAI in Vigarano. 52nd Lunar and Planetary Science Conference. 2021. 1834
2021Mishra, RK: Petrography and Mineralogy of a Large Calcium, Aluminum-Rich Inclusion in Chainpur (LL3. 4) Ordinary Chondrite. 52nd Lunar and Planetary Science Conference. 2021. 1837
2019Mishra, RK and Marhas, KK and Chaussidon, M: Evidence of multiple episodes of superflares during the birth of Our Sun. 38th Meeting of the astronomical society of India (2019). 2019.
2019Mishra, Ritesh Kumar and Marhas, Kuljeet Kaur: Meteoritic evidence of a late superflare as source of 7 Be in the early Solar System. In: Nature Astronomy, 3, 2019, 498--505
2019Mishra, Ritesh Kumar and Marhas, Kuljeet Kaur: On the origin of 7Be isotopic records in a Calcium, Aluminium,-rich inclusion. In: arXiv preprint arXiv:1904.01992, 2019,
2019Mishra, Ritesh Kumar: Silicon-sulphur isotope systematics studies in early solar system solids using high-resolution secondary ion mass spectrometry. Proceedings of the thirty second ISMAS symposium on mass spectrometry. 2019.
2019Marhas, KK and Mishra, RK: Superflares from the primeval Sun. 38th Meeting of the astronomical society of India (2019). 2019.
2019Mishra, Ritesh Kumar: The light elements enlighten lightening from our young sun. Proceedings of the thirty second ISMAS symposium on mass spectrometry. 2019.
2018Mishra, RK and Marhas, KK and Trieloff, M: 26Al-26Mg Isotope Systematics in Leoville CAIs and Chainpur Chondrule. 49th Annual Lunar and Planetary Science Conference. 2018. 1633
2018Mishra, RK and Marhas, KK: Fossil Record of 7Be and 10Be in a CAI: Implications for the Origin and Early Evolution of Our Solar System. 81st Annual Meeting of the Meteoritical Society. 2018. 6125
2018Mishra, RK and Trieloff, M: Oxygen isotopic study of a CAI and an Al-rich chondrule from Vigarano. 28th V. M. Goldschmidt conference Abstract\#3931. 2018.
2018Mishra, Ritesh Kumar: Petrography and Mineralogy of calcium-, aluminum-rich inclusions in an unequilibrated carbonaceous chondrite Y 81020 (CO3.05). In: current science, 114, 2018, 1510--1519
2018Marhas, KK and Mishra, RK: The Vanguard of Irradiation: The Fourth Element. 49th Annual Lunar and Planetary Science Conference. 2018. 1646
2017Mishra, Ritesh Kumar: A Hibonite-Pyroxene Spherule in Allan Hills 77307 (CO3. 03): Petrography and Mineralogy. In: arXiv preprint arXiv:1712.00603, 2017,
2017Mishra, RK and Marhas, KK and Trieloff, M: Petrography and Mineralogy of a Hibonite-Pyroxene Spherule in Allan Hills 77307 (CO3. 03). 48th Annual Lunar and Planetary Science Conference. 2017. 1423
2016Mishra, Ritesh Kumar and Marhas, Kuljeet Kaur and Sameer: Abundance of 60 Fe inferred from nanoSIMS study of QUE 97008 (L3. 05) chondrules. In: Earth and Planetary Science Letters, 436, 2016, 71--81
2016Mishra, RK and Simon, JI and Ross, DK and Marhas, KK: CAIs in Semarkona (LL3. 0). 47th Lunar and Planetary Conference. 2016. 2750
2015Mishra, RK and Simon, JI and Ross, DK and Keller, LP and Marhas, KK and Needham, AW: A Refractory Inclusion in Unequilibrated Ordinary Chondrite (LL3. 3) Allan Hills A81251. 78th Annual Meeting of the Meteoritical Society. 2015. 5139
2015Needham, AW and Messenger, S and Keller, LP and Simon, JI and Han, J and Mishra, RK and Marhas, KK: Aluminum-magnesium isotope systematics in Wark-Lovering rims. 78th Annual Meeting of the Meteoritical Society. 2015. 5014
2015Mishra, Ritesh Kumar and Marhas, Kuljeet Kaur and Simon, Justin I and Ross, Daniel Kent: Evidence of Metasomatism in the Lowest Petrographic Types Inferred from A Na (-), K, Rich Rim Around A LEW 86018 (L3. 1) Chondrule. 2015,
2015Mishra, RK and Simon, JI and Ross, DK and Needham, AW and Messenger, S and Keller, LP and Han, J and Marhas, KK: Na, K-Rich Rim Around a Chondrule in Unequilibrated Ordinary Chondrite LEW 86018 (L3. 1). Lunar and Planetary Science Conference. 2015. 2994
2015Mishra, RK and Simon, JI and Messenger, S and Marhas, KK and Ross, DK and Needham, AW and Han, J: Oxygen Isotopes in Perovskites and Associated Mineral Assemblages in a Hibonite-Bearing Allende CAI. 78th Annual Meeting of the Meteoritical Society. 2015. 5133
2015Needham, AW and Messenger, S and Keller, LP and Simon, JI and Han, J and Mishra, RK: Systematic oxygen isotope variations within a single Vigarano CAI surrounded by a uniformly 16O-rich Wark-Lovering rim. 46th Annual Lunar and Planetary Science Conference. 2015. 2865
2014Mishra, RK and Goswami, JN: Fe--Ni and Al--Mg isotope records in UOC chondrules: Plausible stellar source of 60Fe and other short-lived nuclides in the early Solar System. In: Geochimica et Cosmochimica Acta, 132, 2014, 440--457
2014Mishra, Ritesh Kumar and Chaussidon, Marc: Fossil records of high level of 60Fe in chondrules from unequilibrated chondrites. In: Earth and Planetary Science Letters, 398, 2014, 90--100
2014Mishra, Ritesh Kumar and Chaussidon, Marc: Timing and extent of Mg and Al isotopic homogenization in the early inner Solar System. In: Earth and Planetary Science Letters, 390, 2014, 318--326
2013Luu, Tu-Han and Chaussidon, Marc and Mishra, Ritesh Kumar and Rollion-Bard, Claire and Villeneuve, Johan and Srinivasan, Gopalan and Birck, Jean-Louis: High precision Mg isotope measurements of meteoritic samples by secondary ion mass spectrometry. In: Journal of Analytical Atomic Spectrometry, 28, 2013, 67--76
2013Mishra, RK and Rollion-Bard, C and Chaussidon, M: To be, or not to be; Homogeneous in 26Al During the Early Solar System?. In: Meteoritics and Planetary Science Supplement, 76, 2013, 5217
2012Mishra, RK and Chaussidon, M: 60Fe-60Ni Isotope Systematics in Silicates in Chondrules from Unequilibrated Chondrites: Yet Again and Status Quo. In: Meteoritics and Planetary Science Supplement, 75, 2012, 5194
2012Marhas, KK and Mishra, RK: Fossil Records of Fe-60 in QUE 97008 Chondrule. In: Meteoritics and Planetary Science Supplement, 75, 2012, 5273
2012Mishra, R and Chaussidon, M: Mg Isotopic Study of CA-, Al-Rich Inclusions from Carbonaceous Chondrites: Constraints on 26Al Distribution in the Accretion Disk and Accretion Processes. Lunar and Planetary Science Conference. Lunar and Planetary Science Institute, Houston, 2012. 1942
2012Mishra, Ritesh Kumar and Chaussidon, Marc and Marhas, K: Ni isotope systematics in chondrules from unequilibrated chondrites to constraint 60Fe in the early Solar system.. Proceedings of the XII International Symposium on Nuclei in the Cosmos (NIC XII). August 5-12, 2012. Cairns, Australia. Published online at http://pos. sissa. it/cgi-bin/reader/conf. cgi? confid= 146, id. 85. 2012. 85
2011Mishra, RK and Chaussidon, M: 26Al-26Mg Chronometry of CAIs from CV3 Chondrites. In: Meteoritics and Planetary Science Supplement, 74, 2011, 5481
2011Mishra, RK and Chaussidon, M: Al-26-Mg-26 CHRONOMETRY OF CAIs FROM CV3 CHONDRITES. METEORITICS \& PLANETARY SCIENCE. 2011. A162--A162
2011Mishra, RK and Chaussidon, M and Luu, Tu H: Petropraphic and High precision Al-Mg Isotope Systematics of a type B CAI from Vigarano. 42nd Annual Lunar and Planetary Science Conference. Lunar and Planetary Science Institute, Houston, 2011. 2110
2011Mishra, RK and Chaussidon, M: Records of Early Solar System Events Inferred from Al-Mg Isotope Systematics in CV3 Chondrites. Workshop on Formation of the First Solids in the Solar System. 2011. 9072
2010Mishra, RK and Goswami, JN and Tachibana, S and Huss, GR and Rudraswami, NG: 60Fe and 26Al in chondrules from unequilibrated chondrites: Implications for early solar system processes. In: The Astrophysical Journal Letters, 714, 2010, L217
2009Mishra, RK and Goswami, JN: 60Fe and 26Al Records in UOC Chondrules: Evidence for Their Contemporaneous Injection into Early Solar System. In: Meteoritics and Planetary Science Supplement, 72, 2009, 5190
2009Mishra, RK and Goswami, JN and Tachibana, S and Huss, GR and Rudraswami, NG: Fe-Ni and Al-Mg Isotope Systematics in Chondrules from Unequilibrated Ordinary Chondrites. Lunar and Planetary Science Conference. 2009. 1689
2008Mishra, RK and Goswami, JN: Fe-Ni and Al-Mg Isotope Systematics in Chondrules from Semarkona (LL3. 0) and LEW86314 (L3. 0). In: Meteoritics and Planetary Science Supplement, 43, 2008, 5072
2007Goswami, JN and Mishra, R and Rudraswami, NG: 60Fe and 26Al records in chondrules from unequilibrated ordinary chondrites of low petrologic type. 38th Annual Lunar and Planetary Science Conference. 2007. 1943
2007Goswami, JN and Mishra, R: Fe-Ni Isotope Systematics in Silicate Phases of UOC Chondrules. In: Meteoritics and Planetary Science Supplement, 42, 2007, 5088
n.n.Mishra, RK and Marhas, KK: Evidence of fossil record of 7Be in a CAI: Implications for the early Solar system. 28th V. M. Goldschmidt conference Abstract\#3915. n.n..