Zobrazeno 1 - 10
of 1 246
pro vyhledávání: '"Chang, H. K."'
Autor:
Jana, A., Ricci, C., Temple, M. J., Chang, H. -K., Shablovinskaya, E., Trakhtenbrot, B., Diaz, Y., Ilic, D., Nandi, P., Koss, M.
Changing-look active galactic nuclei (CLAGNs) show the appearance and disappearance of broad emission lines in their UV/optical spectra on timescales of months to decades. Here, we investigate how CL transitions depend on several AGN parameters such
Externí odkaz:
http://arxiv.org/abs/2411.08676
Autor:
Safi-Harb, S., Burdge, K. B., Bodaghee, A., An, H., Guest, B., Hare, J., Hebbar, P., Ho, W. C. G., Kargaltsev, O., Kirmizibayrak, D., Klingler, N., Nynka, M., Reynolds, M. T., Sasaki, M., Sridhar, N., Vasilopoulos, G., Woods, T. E., Yang, H., Heinke, C., Kong, A., Li, J., MacMaster, A., Mallick, L., Treyturik, C., Tsuji, N., Binder, B., Braun, C., Chang, H. -K., Chatterjee, A., Ferrand, G., Holland-Ashford, T., Ng, C. -Y., Plotkin, R., Romani, R., Zhang, S.
Compact objects and supernova remnants provide nearby laboratories to probe the fate of stars after they die, and the way they impact, and are impacted by, their surrounding medium. The past five decades have significantly advanced our understanding
Externí odkaz:
http://arxiv.org/abs/2311.07673
Autor:
Mondal, Santanu, Salgundi, Anirudh, Chatterjee, Debjit, Jana, Arghajit, Chang, H. -K., Naik, Sachindra
The black hole X-ray binary GX\,339-4 showed an X-ray outburst during 2021. The {\it AstroSat} captured this outburst when the source entered into the intermediate flux state while the count rate was declining. The source showed an alternating flux p
Externí odkaz:
http://arxiv.org/abs/2303.03742
Autor:
Chatterjee, D., Debnath, D., Jana, A., Shang, J. -R., Chakrabarti, S. K., Chang, H. -K., Banerjee, A., Bhattacharjee, A., Chatterjee, K., Bhowmick, R., Nath, S. K.
Galactic transient black hole candidate (BHC) MAXI J1535-571 was discovered on 2017 September 02 simultaneously by {\it MAXI}/GSC and {\it Swift}/BAT instruments. It has also been observed by India's first multi-wavelength astronomy-mission satellite
Externí odkaz:
http://arxiv.org/abs/2006.09077
We build HI absorption spectra towards Supernova Remnant (SNRs) G16.7+0.1 and G15.9+0.2 using the THOR survey data. With the absorption spectra, we give a new distance range of 7 to 16 kpc for G15.9+0.2. We also resolve the near/far-side distance amb
Externí odkaz:
http://arxiv.org/abs/1907.12295
Autor:
Huang, Y., Qu, J. L., Zhang, S. N., Bu, Q. C., Chen, Y. P., Tao, L., Zhang, S., Lu, F. J., Li, T. P., Song, L. M., Xu, Y. P., Cao, X. L., Chen, Y., Liu, C. Z., Chang, H. -K., Yu, W. f., Weng, S. S., Hou, X., Kong, A. K. H., Xie, F. G., Zhang, G. B., ZHOU, J. F., Chang, Z., Chen, G., Chen, L., Chen, T. X., Chen, Y. B., Cui, W., Cui, W. W., Deng, J. K., Dong, Y. W., Du, Y. Y., Fu, M. X., Gao, G. H., Gao, H., Gao, M., Ge, M. Y., Gu, Y. D., Guan, J., Gungor, C., Guo, C. C., Han, D. W., Hu, W., Huo, J., Ji, J. F., Jia, S. M., Jiang, L. H., Jiang, W. C., Jin, J., Jin, Y. J., Li, B., Li, C. K., Li, G., Li, M. S., Li, W., Li, X., Li, X. B., Li, X. F., Li, Y. G., Li, Z. J., Li, Z. W., Liang, X. H., Liao, J. Y., Liu, G. Q., Liu, H. W., Liu, S. Z., Liu, X. J., Liu, Y., Liu, Y. N., Lu, B., Lu, X. F., Luo, T., Ma, X., Meng, B., Nang, Y., Nie, J. Y., Ou, G, Sai, N., Shang, R. C., Sun, L., Tan, Y., Tao, W., Tuo, Y. L., Wang, G. F., Wang, H. Y., Wang, J., Wang, W. S., Wang, Y. S., Wen, X. Y., Wu, B. B., Wu, M., Xiao, G. C., Xiong, S. L., Xu, H., Yan, L. L., Yang, J. W., Yang, S., Yang, Y. J., Zhang, A. M., Zhang, C. L., Zhang, C. M., Zhang, F., Zhang, H. M., Zhang, J., Zhang, Q., Zhang, T., Zhang, W., Zhang, W. C., Zhang, W. Z., Zhang, Y., Zhang, Y. F., Zhang, Y. J., Zhang, Z., Zhang, Z. L., Zhao, H. S., Zhao, J. L., Zhao, X. F., Zheng, S. J., Zhu, Y., Zhu, Y. X., Zou, C. L.
We present the X-ray timing results of the new black hole candidate (BHC) MAXI J1535-571 during its 2017 outburst from Hard X-ray Modulation Telescope (\emph{Insight}-HXMT) observations taken from 2017 September 6 to 23. Following the definitions giv
Externí odkaz:
http://arxiv.org/abs/1808.05318
Autor:
Shang, J. -R., Debnath, D., Chatterjee, D., Jana, A., Chakrabarti, S. K., Chang, H. -K., Yap, Y. -X., Chiu, C. -L.
Publikováno v:
2019ApJ...875....4S
We present spectral and timing properties of the newly discovered X-ray transient source, MAXI J1535-571, which is believed to be a Galactic X-ray binary containing a black hole candidate (BHC) as the primary object. After its discovery on 2017 Sep.
Externí odkaz:
http://arxiv.org/abs/1806.07147
We present X-ray observations of PWN G16.73+0.08/SNR G16.7+0.1 using archival data of {\it Chandra} ACIS. The X-ray emission peak location of this pulsar wind nebula is found to be offset by 24 arcsec from the centre of the 1.4-GHz emission of this n
Externí odkaz:
http://arxiv.org/abs/1711.04953
Autor:
Wang, J., Chang, H. -K.
Soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are two groups of enigmatic objects, which have been extensively investigated in past few decades. Based on the ample information about their timing behaviors, spectra, and variability pr
Externí odkaz:
http://arxiv.org/abs/1301.4766