Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Tang, Sumin"'
Autor:
Hillenbrand, Lynne A., Miller, Adam A., Carpenter, John M., Kasliwal, Mansi M., Isaacson, Howard, Tang, Sumin, Joshi, Vishal, Banerjee, D. P. K., Cutri, Roc
We report the outbursting source PTF 14jg, which prior to the onset of its late 2013 eruption, was a faint, unstudied, and virtually uncatalogued star. The salient features of the PTF 14jg outburst are: (i) projected location near the W4 HII region a
Externí odkaz:
http://arxiv.org/abs/1901.10693
Autor:
Kao, Wil, Kaplan, David L., Prince, Thomas A., Tang, Sumin, Ene, Irina, Kim, Kyu Bin, Levitan, David, Kulkarni, Shrinivas R., Laher, Russ R.
Publikováno v:
MNRAS 461 (2016) 2747-2761
We present a sample of 59 periodic variables from the Palomar Transient Factory, selected from published catalogues of white dwarf (WD) candidates. The variability can likely be attributed to ellipsoidal variation of the tidally distorted companion i
Externí odkaz:
http://arxiv.org/abs/1606.04627
Autor:
Rodriguez, Joseph E., Stassun, Keivan G., Lund, Michael B., Siverd, Robert J., Pepper, Joshua, Tang, Sumin, Kafka, Stella, Gaudi, Scott, Conroy, Kyle E., Beatty, Thomas G., Stevens, Daniel J., Shappee, Benjamin J., Kochanek, Christopher S.
We present TYC 2505-672-1 as a newly discovered and remarkable eclipsing system comprising an M-type red giant that undergoes a ~3.45 year long, near-total eclipse (depth of ~4.5 mag) with a very long period of ~69.1 yr. TYC 2505-672-1 is now the lon
Externí odkaz:
http://arxiv.org/abs/1601.00135
Autor:
Tang, Sumin
This thesis presents observational studies of long-term and extreme variability of stars with the Digital Access to a Sky Century@Harvard (DASCH) project. Stellar variations over decades are poorly explored. With the unique 100 years coverage of DASC
Externí odkaz:
http://dissertations.umi.com/gsas.harvard:10369
http://nrs.harvard.edu/urn-3:HUL.InstRepos:9453703
http://nrs.harvard.edu/urn-3:HUL.InstRepos:9453703
Autor:
Bellm, Eric C., Kaplan, David L., Breton, Rene P., Phinney, E. Sterl, Bhalerao, Varun B., Camilo, Fernando, Dahal, Sumit, Djorgovski, S. G., Drake, Andrew J., Hessels, J. W. T., Laher, Russ R., Levitan, David B., Lewis, Fraser, Mahabal, Ashish A., Ofek, Eran O., Prince, Thomas A., Ransom, Scott M., Roberts, Mallory S. E., Russell, David M., Sesar, Branimir, Surace, Jason A., Tang, Sumin
PSR J2129-0429 is a "redback" eclipsing millisecond pulsar binary with an unusually long 15.2 hour orbit. It was discovered by the Green Bank Telescope in a targeted search of unidentified Fermi gamma-ray sources. The pulsar companion is optically br
Externí odkaz:
http://arxiv.org/abs/1510.00721
Autor:
Tang, Sumin, Kaplan, David L., Phinney, Sterl, Prince, Thomas A., Breton, Rene P., Bellm, Eric, Bildsten, Lars, Cao, Yi, Kong, A. K. H., Perley, Daniel A., Sesar, Branimir, Wolf, William M., Yen, T. -C.
We report the optical identification of the companion to the {\it Fermi} black widow millisecond pulsar PSR J1544+4937. We find a highly variable source on Keck LRIS images at the nominal pulsar position, with 2 magnitude variations over orbital peri
Externí odkaz:
http://arxiv.org/abs/1407.0081
Autor:
Arcavi, Iair, Gal-Yam, Avishay, Sullivan, Mark, Pan, Yen-Chen, Cenko, S. Bradley, Horesh, Assaf, Ofek, Eran O., De Cia, Annalisa, Yan, Lin, Yang, Chen-Wei, Howell, D. A., Tal, David, Kulkarni, Shrinivas R., Tendulkar, Shriharsh P., Tang, Sumin, Xu, Dong, Sternberg, Assaf, Cohen, Judith G., Bloom, Joshua S., Nugent, Peter E., Kasliwal, Mansi M., Perley, Daniel A., Quimby, Robert M., Miller, Adam A., Theissen, Christopher A., Laher, Russ R.
We present the results of a Palomar Transient Factory (PTF) archival search for blue transients which lie in the magnitude range between "normal" core-collapse and superluminous supernovae (i.e. with $-21\,{\leq}M_{R\,(peak)}\,{\leq}-19$). Of the six
Externí odkaz:
http://arxiv.org/abs/1405.1415
Autor:
Tang, Sumin, Bildsten, Lars, Wolf, William M., Li, K. L., Kong, Albert K. H., Cao, Yi, Cenko, S. Bradley, De Cia, Annalisa, Kasliwal, Mansi M., Kulkarni, Shrinivas R., Laher, Russ, Masci, Frank, Nugent, Peter E., Perley, Daniel A., Prince, Thomas A., Surace, Jason
The iPTF detection of the most recent outburst of the recurrent nova system RX J0045.4+4154 in the Andromeda Galaxy has enabled the unprecedented study of a massive ($M>1.3\ M_\odot$) accreting white dwarf (WD). We detected this nova as part of the n
Externí odkaz:
http://arxiv.org/abs/1401.2426
Autor:
Sesar, Branimir, Grillmair, Carl J., Cohen, Judith G., Bellm, Eric C., Bhalerao, Varun B., Levitan, David, Laher, Russ R., Ofek, Eran O., Surace, Jason A., Tang, Sumin, Waszczak, Adam, Kulkarni, Shrinivas R., Prince, Thomas A.
We report positions, velocities and metallicities of 50 ab-type RR Lyrae (RRab) stars observed in the vicinity of the Orphan stellar stream. Using about 30 RRab stars classified as being likely members of the Orphan stream, we study the metallicity a
Externí odkaz:
http://arxiv.org/abs/1308.0857
The Digital Access to a Sky Century@Harvard (DASCH) project is digitizing the ~500,000 glass plate images obtained (full sky) by the Harvard College Observatory from 1885-1992. Astrometry and photometry for each resolved object are derived with photo
Externí odkaz:
http://arxiv.org/abs/1304.7504