Amy Lien

I work with students on a various research projects related to some of the biggest astrophysical explosions in the universe: gamma-ray bursts, supernovae, and merging neutron stars and black holes. We use gamma-ray bursts to explore the history of the universe, and study how nature can form these energetic bursts.

In addition, we participate in the development of future space telescopes. We simulate GRB detections for these future space telescopes to figure out how to design the telescope to better understand the dynamic universe.

Many of my projects rely on computer programing. We wrote codes to perform data analysis and simulation to study the history of the universe. Students work with me will learn about coding in popular languages, such as Python, along with data analysis tools for space instruments.

Moreover, my research projects involve international collaboration. Students will participate in teleconference with scientists from all over the world (e.g., U.K., Italy, Germany, France, Australia, Japan, Argentina, Brazil, and various universities in the US). Students will also attend international conferences to present their results.

"Kilohertz quasiperiodic oscillations in short gamma-ray bursts." Chirenti, C.; Dichiara, S.; Lien, A; Nature, Vol. 613, Issue 7943, p.253-256 (2023)

"Properties of High-redshift Gamma-Ray Bursts." Fryer, C.; Lien, A; Fruchter, A., et al. ApJ, The Astrophysical Journal, Vol. 929, Issue 2, article id 111, 17 pp. (2022)

"Instrumental Tip-of-the-iceberg Effects on the Prompt Emission of Swift/BAT Gamma-ray." Moss, M; Lien, A., Guiriec, S; et al. The Astrophysical Journal, Vol. 927, Issue 2, article id 157, 20 pp. (2022)

"FRB131104 Swift/BAT Data Revisited: No Evidence of a Gamma-Ray Counterpart." Sakamoto, T.; Troja, E.; Lien, A. et al. The Astrophysical Journal, Volume 908, Issue 2, id.137, 6 pp. (2021)

"Swift Multiwavelength Follow-up of LVC S200224ca and the Implications for Binary Black Hole Mergers." Klingler N.; Lien, A; Oates S. R, et al., The Astrophysical Journal, Volume 907, Issue 2, id.97, 11 pp. (2021)

"Using gamma ray monitoring to avoid missing the next Milky Way Type Ia supernova." Wang, X.; Fields, B. D.; Lien, A. MNRAS, Volume 486, Issue 2, p.2910-2918 (2019)

"The Third Swift Burst Alert Telescope Gamma-Ray Burst Catalog."
Lien, A.; Sakamoto, T.; Barthelmy, S. D., et al., The Astrophysical Journal, Vol. 829, Issue 1, article id 7, 47 pp. (2016)

"Modeling the Swift BAT Trigger Algorithm with Machine Learning." Graff, P.; Lien, A;, Baker, J., et al., The Astrophysical Journal, Vol. 818, Issue 1, article id. 55, 10 pp. (2016)

"Swift Observations of Gamma-Ray Burst Pulse Shapes: GRB Pulse Spectral Evolution Clarified." Hakkila, J.; Lien, A.; Sakamoto T., et al., The Astrophysical Journal, Vol. 815, Issue 2, article id. 134, 16 pp. (2015)

"Probing the Cosmic Gamma-ray Bursts Rate with Trigger Simulations for the Swift Burst Alert Telescope." Lien, A.; Sakamoto, T.; Gehrels, N., et al. The Astrophysical Journal, vol. 783, Issue 1, article id. 24, 22 pp. (2014)

"The Diffuse Gamma-ray Background from Type Ia Supernovae." Lien, A.; Fields, B. D. The Astrophysical Journal, vol. 747, Issue 2, article id. 120, 12 pp. (2012)

"Radio Supernovae in the Great Survey Era." Lien, A.; Chakraborty, N.; Fields, B.D.; and Kemball, A. Astrophysical Journal, vol. 740, Issue 1, id. 23 (2011)

"Synoptic Sky Surveys and the Diffuse Supernova Neutrino Background: Removing Astrophysical Uncertainties and Revealing Invisible Supernovae." Lien, A; Fields, B. D.; and Beacom, J. F. Physical Review D, vol. 81, Issue 8, id. 083001 (2010)

"Cosmic Core-Collapse Supernovae from Upcoming Sky Surveys." Lien, A. and Fields, B. D. Journal of Cosmology and Astroparticle Physics, Issue 01, pp. 047 (2009)

January 2023

Special session at the American Astronomical Society (AAS): Highlights from the BASS DR2: New insights on local SMBH activity from large multi-wavelength studies of hard X-ray selected AGN

Krimm, H.; Lien, A; and the BAT team

Title: The BAT 157 month survey catalog and beyond

August 2022

Time Domain and Multi-Messenger Astrophysics NASA Workshop

Title: Gamma-Ray Bursts in the Multi-Messenger Time-Domain Era