Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Chu, Devin S."'
Autor:
Gautam, Abhimat K., Do, Tuan, Ghez, Andrea M., Chu, Devin S., Hosek Jr., Matthew W., Sakai, Shoko, Naoz, Smadar, Morris, Mark R., Ciurlo, Anna, Haggard, Zoe, Lu, Jessica R.
We present the first estimate of the intrinsic binary fraction of young stars across the central $\approx$ 0.4 pc surrounding the supermassive black hole (SMBH) at the Milky Way Galactic center (GC). This experiment searched for photometric variabili
Externí odkaz:
http://arxiv.org/abs/2401.12555
Autor:
Chu, Devin S., Do, Tuan, Ghez, Andrea, Gautam, Abhimat K., Ciurlo, Anna, O'Neil, Kelly Kosmo, Hosek Jr., Matthew W., Hees, Aurélien, Naoz, Smadar, Sakai, Shoko, Lu, Jessica R., Chen, Zhuo, Bentley, Rory O., Becklin, Eric E., Matthews, Keith
We present the results of the first systematic search for spectroscopic binaries within the central 2 x 3 arcsec$^2$ around the supermassive black hole at the center of the Milky Way galaxy. This survey is based primarily on over a decade of adaptive
Externí odkaz:
http://arxiv.org/abs/2303.16977
Autor:
Ciurlo, Anna, Campbell, Randall D., Morris, Mark R., Do, Tuan, Ghez, Andrea M., Becklin, Eric E., Bentley, Rory O., Chu, Devin S., Gautam, Abhimat K., Gursahani, Yash A., Hees, Aurelien, O'Neil, Kelly Kosmo, Lu, Jessica R., Martinez, Gregory D., Naoz, Smadar, Sakai, Shoko, Schoedel, Rainer
We present two decades of new high-angular-resolution near-infrared data from the W. M. Keck Observatory that reveal extreme evolution in X7, an elongated dust and gas feature, presently located half an arcsecond from the Galactic Center supermassive
Externí odkaz:
http://arxiv.org/abs/2301.06562
Integral Field Spectrographs (IFS) often require non-trivial calibration techniques to process raw data. The OH Suppressing InfraRed Imaging Spectrograph (OSIRIS) at the W. M. Keck Observatory is a lenslet-based IFS that requires precise methods to a
Externí odkaz:
http://arxiv.org/abs/2206.04070
Autor:
Bentley, Rory O., Do, Tuan, Kerzendorf, Wolfgang, Chu, Devin S., Chen, Zhuo, Konopacky, Quinn, Ghez, Andrea
While the Milky Way Nuclear star cluster has been studied extensively, how it formed is uncertain. Studies have shown it contains a solar and supersolar metallicity population that may have formed in-situ, along with a subsolar metallicity population
Externí odkaz:
http://arxiv.org/abs/2112.02649
Autor:
Ciurlo, Anna, Morris, Mark R., Campbell, Randall D., Ghez, Andrea M., Do, Tuan, Chu, Devin S.
We present the first observational constraint on the Br-gamma recombination line emission associated with the supermassive black hole at the center of our Galaxy, known as Sgr A*. By combining 13 years of data with the Adaptive Optics fed integral fi
Externí odkaz:
http://arxiv.org/abs/2102.13096
Autor:
Ciurlo, Anna, Campbell, Randall D., Morris, Mark R., Do, Tuan, Ghez, Andrea M., Hees, Aurelien, Sitarski, Breann N., O'Neil, Kelly Kosmo, Chu, Devin S., Martinez, Gregory D., Naoz, Smadar, Stephan, Alexander P.
Publikováno v:
Nature volume 577, pages337-340(2020)
The central 0.1 parsecs of the Milky Way host a supermassive black hole identified with the position of the radio and infrared source Sagittarius A*, a cluster of young, massive stars (the S stars) and various gaseous features. Recently, two unusual
Externí odkaz:
http://arxiv.org/abs/2001.08325
Autor:
Do, Tuan, Hees, Aurelien, Ghez, Andrea, Martinez, Gregory D., Chu, Devin S., Jia, Siyao, Sakai, Shoko, Lu, Jessica R., Gautam, Abhimat K., O'Neil, Kelly Kosmo, Becklin, Eric E., Morris, Mark R., Matthews, Keith, Nishiyama, Shogo, Campbell, Randy, Chappell, Samantha, Chen, Zhuo, Ciurlo, Anna, Dehghanfar, Arezu, Gallego-Cano, Eulalia, Kerzendorf, Wolfgang E., Lyke, James E., Naoz, Smadar, Saida, Hiromi, Schödel, Rainer, Takahashi, Masaaki, Takamori, Yohsuke, Witzel, Gunther, Wizinowich, Peter
General Relativity predicts that a star passing close to a supermassive black hole should exhibit a relativistic redshift. We test this using observations of the Galactic center star S0-2. We combine existing spectroscopic and astrometric measurement
Externí odkaz:
http://arxiv.org/abs/1907.10731
Autor:
Do, Tuan, Ghez, Andrea, Lu, Jessica R., Morris, Mark, Hosek Jr., Matthew, Hees, Aurelien, Naoz, Smadar, Ciurlo, Anna, Armitage, Philip J., Beaton, Rachael L, Becklin, Eric, Bellini, Andrea, Bentley, Rory O., Bland-Hawthorn, Joss, Chakrabarti, Sukanya, Chen, Zhuo, Chu, Devin S., Dehghanfar, Arezu, Gammie, Charles F., Gautam, Abhimat K., Genzel, Reinhard, Greene, Jenny, Haggard, Daryl, Hora, Joseph, Kerzendorf, Wolfgang E., Libralato, Mattia, Nishiyama, Shogo, O'Neil, Kelly Kosmo, Ozel, Feryal, Paumard, Thibaut, Perets, Hagai B., Psaltis, Dimitrios, Quataert, Eliot, Ramirez-Ruiz, Enrico, Rich, R Michael, Rasio, Fred, Sakai, Shoko, Schoedel, Rainer, Smith, Howard, Weinberg, Nevin N., Witzel, Gunther
As the closest example of a galactic nucleus, the Galactic center (GC) presents an exquisite laboratory for learning about supermassive black holes (SMBH) and their environment. We describe several exciting new research directions that, over the next
Externí odkaz:
http://arxiv.org/abs/1903.05293
Autor:
Chu, Devin S., Do, Tuan, Hees, Aurelien, Ghez, Andrea, Naoz, Smadar, Witzel, Gunther, Sakai, Shoko, Chappell, Samantha, Gautam, Abhimat K., Lu, Jessica R., Matthews, Keith
The star S0-2, which orbits the supermassive black hole (SMBH) in our Galaxy with a period of 16 years, provides the strongest constraint on both the mass of the SMBH and the distance to the Galactic center. S0-2 will soon provide the first measureme
Externí odkaz:
http://arxiv.org/abs/1709.04890