Amir Siraj

From Wikitia
Jump to navigation Jump to search
Amir Siraj
Add a Photo
NationalityAmerican
CitizenshipUnited states of America
Alma materHarvard University
OccupationAstrophysicist

Amir Siraj is an American List of astrophysicist and student at Harvard University.[1] He is youngest scientist on the 2021 Forbes 30 Under 30 list.[2] Siraj's research pertains to Iinterstellar objects,[3][4][5][6] the Solar System,[7][8][9][10] extrasolar planetary systems,[11] black holes,[12] and supernovae.[13]

Siraj demonstrated that the Oort Cloud could have been formed as observed from ejected planetesimals from other stars in the Sun's birth cluster, indicating the possible former existence of a solar binary companion.[14] Siraj theorized a new method for detecting small black holes.[15] Siraj proposed searches for trapped interstellar objects in the Solar System,[16] stellar occultations caused by interstellar objects,[17] optical signatures of interstellar meteors in the Earth's atmosphere,[18] and electromagnetic radiation from collisions between interstellar objects and the Moon,[19] as well as impacts on neutron stars.[20] Siraj published constraints on the morphology of interstellar objects Oumuamua and 2I/Borisov,[21][22] reported the first discovery of a meteor that originated outside the Solar System,[23] and developed a method for determining the characteristic ejection speeds of interstellar objects from their parent planetary systems.[24]

References

  1. "CfA research on twin suns, 'Oumuamua, and Betelgeuse". Harvard Gazette. 2020-09-04. Retrieved 2020-12-09.
  2. "Forbes 30 Under 30 2021: Science". www.forbes.com. Retrieved 2020-12-07.
  3. Williams, Matt (2018-11-29). "There Could be Hundreds of Interstellar Asteroids and Comets in the Solar System Right Now That we Could Study". Universe Today. Retrieved 2020-12-07.
  4. CNN, AJ Willingham. "A meteor from another solar system may have hit Earth, and the implications are fascinating". CNN. Retrieved 2020-12-07.
  5. August 2019, Mike Wall 30. "A Telescope Orbiting the Moon Could Spy 1 Interstellar Visitor Per Year". Space.com. Retrieved 2020-12-07.
  6. Williams, Matt (2020-11-07). "Vera Rubin Should be Able to Detect a Couple of Interstellar Objects a Month". Universe Today. Retrieved 2020-12-07.
  7. "Did the Sun have an early binary companion?". Cosmos Magazine. 2020-08-20. Retrieved 2020-12-07.
  8. Williams, Matt (2020-02-18). "There Could be Meteors Traveling at a Fraction of the Speed of Light When They Hit the Atmosphere". Universe Today. Retrieved 2020-12-07.
  9. "Interstellar Visitors Could Export Terrestrial Life to Other Stars". Eos. Retrieved 2020-12-07.
  10. Ciaccia, Chris (2020-09-27). "Meteors that brushed Earth's atmosphere may have brought life to Venus, study says". Fox News. Retrieved 2020-12-07.
  11. Carter, Jamie. "Asteroid Day: Any Life On The Closest Exoplanet To Us May Be Under Attack". Forbes. Retrieved 2020-12-07.
  12. Overbye, Dennis (2020-09-11). "Is There a Black Hole in Our Backyard?". The New York Times. ISSN 0362-4331. Retrieved 2020-12-07.
  13. "Ancient supernovas may have pierced moon rocks with star shrapnel". Popular Science. Retrieved 2020-12-07.
  14. Siraj, Amir; Loeb, Abraham (2020-08-18). "The Case for an Early Solar Binary Companion". The Astrophysical Journal. 899 (2): L24. doi:10.3847/2041-8213/abac66. ISSN 2041-8213.
  15. "ShieldSquare Captcha". hkvalidate.perfdrive.com. doi:10.3847/2041-8213/aba119. Retrieved 2020-12-07.
  16. Siraj, Amir; Loeb, Abraham (2019-02-11). "Identifying Interstellar Objects Trapped in the Solar System through Their Orbital Parameters". The Astrophysical Journal. 872 (1): L10. doi:10.3847/2041-8213/ab042a. ISSN 2041-8213.
  17. "ShieldSquare Captcha". hkvalidate.perfdrive.com. doi:10.3847/2041-8213/ab74d9. Retrieved 2020-12-07.
  18. Siraj, Amir; Loeb, Abraham (2019-06-07). "Probing Extrasolar Planetary Systems with Interstellar Meteors". arXiv:1906.03270 [astro-ph].
  19. Siraj, Amir; Loeb, Abraham (2020-08-01). "A real-time search for interstellar impacts on the moon". Acta Astronautica. 173: 53–55. doi:10.1016/j.actaastro.2020.04.006. ISSN 0094-5765.
  20. Siraj, Amir; Loeb, Abraham (2019-09-19). "Radio Flares from Collisions of Neutron Stars with Interstellar Asteroids". Research Notes of the AAS. 3 (9): 130. doi:10.3847/2515-5172/ab43de. ISSN 2515-5172.
  21. Siraj, Amir; Loeb, Abraham (2019-01-18). "'Oumuamua's Geometry Could Be More Extreme than Previously Inferred". Research Notes of the AAS. 3 (1): 15. doi:10.3847/2515-5172/aafe7c. ISSN 2515-5172.
  22. Siraj, Amir; Loeb, Abraham (2019-09-19). "An Argument for a Kilometer-scale Nucleus of C/2019 Q4". Research Notes of the AAS. 3 (9): 132. doi:10.3847/2515-5172/ab44c5. ISSN 2515-5172.
  23. Siraj, Amir; Loeb, Abraham (2019-06-04). "Discovery of a Meteor of Interstellar Origin". arXiv:1904.07224 [astro-ph].
  24. Siraj, Amir; Loeb, Abraham (2020-10-29). "Observable Signatures of the Ejection Speed of Interstellar Objects from Their Birth Systems". The Astrophysical Journal. 903 (1): L20. doi:10.3847/2041-8213/abc170. ISSN 2041-8213.

External links

Add External links

This article "Amir Siraj" is from Wikipedia. The list of its authors can be seen in its historical. Articles taken from Draft Namespace on Wikipedia could be accessed on Wikipedia's Draft Namespace.