Zobrazeno 1 - 10
of 242
pro vyhledávání: '"Rajaguru. S"'
We report and discuss phase-shift and phase travel time of low-frequency ({\nu} < 5.0 mHz) acoustic waves estimated within the photosphere and photosphere-chromosphere interface regions, utilizing multi-height velocities in the quiet Sun. The bisecto
Externí odkaz:
http://arxiv.org/abs/2406.19789
Autor:
Konopacky, Quinn M., Baker, Ashley D., Mawet, Dimitri, Fitzgerald, Michael P., Jovanovic, Nemanja, Beichman, Charles, Ruane, Garreth, Bertz, Rob, Terada, Hiroshi, Dekany, Richard, Lingvay, Larry, Kassis, Marc, Anderson, David, Tamura, Motohide, Benneke, Bjorn, Beatty, Thomas, Do, Tuan, Nishiyama, Shogo, Plavchan, Peter, Wang, Jason, Wang, Ji, Burgasser, Adam, Ruffio, Jean-Baptiste, Zhang, Huihao, Brown, Aaron, Fucik, Jason, Gibbs, Aidan, Gibson, Rose, Halverson, Sam, Johnson, Christopher, Karkar, Sonia, Kotani, Takayuki, Kress, Evan, Leifer, Stephanie, Magnone, Kenneth, Maire, Jerome, Pahuja, Rishi, Porter, Michael, Roberts, Mitsuko, Sappey, Ben, Thorne, Jim, Wang, Eric, Artigau, Etienne, Blake, Geoffrey A., Canalizo, Gabriela, Chen, Guo, Doppmann, Greg, Doyon, Rene, Dressing, Courtney, Fang, Min, Greene, Thomas, Herczeg, Greg, Hillenbrand, Lynne, Howard, Andrew, Kane, Stephen, Kataria, Tiffany, Kempton, Eliza, Knutson, Heather, Lafreniere, David, Liu, Chao, Metchev, Stanimir, Millar-Blanchaer, Max, Narita, Norio, Pandey, Gajendra, Rajaguru, S. P., Robertson, Paul, Salyk, Colette, Sato, Bunei, Schlawin, Evertt, Sengupta, Sujan, Sivarani, Thirupathi, Skidmore, Warren, Vasisht, Gautam, Yasui, Chikako, Zhang, Hui
HISPEC is a new, high-resolution near-infrared spectrograph being designed for the W.M. Keck II telescope. By offering single-shot, R=100,000 between 0.98 - 2.5 um, HISPEC will enable spectroscopy of transiting and non-transiting exoplanets in close
Externí odkaz:
http://arxiv.org/abs/2309.11050
Autor:
Sen, Anisha, Rajaguru, S. P.
The distribution and evolution of photospheric magnetic field in sunspots, plages and network, and variations in their relative flux content, play key roles in radial velocity (RV) fluctuations observed in Sun-as-a-star spectra. Differentiating and d
Externí odkaz:
http://arxiv.org/abs/2309.05428
Autor:
Priyal, Muthu, Singh, Jagdev, Prasad, B. Raghavendra, Sumana, Chavali, Kumar, Varun, Mishra, Shalabh, Venkata, S. N., Sindhuja, G., Raja, K. Sasikumar, Kumar, Amit, krishnan, Sanal, Hegde, Bhavana S., Utkarsha, D., Venkatasubramanian, Natarajan, Somasundram, Pawankumar, Nagabhushana, S., Kamath, PU., Kathiravan, S., Mani, T. Vishnu, Basavaraju, Suresh, Chavan, Rajkumar, Vemareddy, P., Ravindra, B., Rajaguru, S. P., Nagaraju, K., Mishra, Wageesh, Joshi, Jayant, Samanta, Tanmoy, Chatterjee, Piyali, Kathiravan, C., Ramesh, R.
ADITYA-L1 is India's first dedicated mission to observe the sun and its atmosphere from a halo orbit around L1 point. Visible emission line coronagraph (VELC) is the prime payload on board at Aditya-L1 to observe the sun's corona. VELC is designed as
Externí odkaz:
http://arxiv.org/abs/2307.03173
Autor:
Tripathy, S. C., Jain, K., Braun, D., Cally, P., Dikpati, M., Felipe, T., Jain, R., Kholikov, S., Khomenko, E., Komm, R., Leibacher, J., Martinez-Pillet, V., Pevtsov, A., Rajaguru, S. P., Roth, M., Uitenbroek, H., Zhao, J.
The goal of helioseismology is to provide accurate information about the Sun's interior from the observations of the wave field at its surface. In the last three decades, both global and local helioseismology studies have made significant advances an
Externí odkaz:
http://arxiv.org/abs/2305.07585
Gravity waves are generated by turbulent subsurface convection overshooting or penetrating locally into a stably stratified medium. While propagating energy upwards, their characteristic negative phase shift over height is a well-recognized observati
Externí odkaz:
http://arxiv.org/abs/2305.02740
In this work, we present a study of the propagation of low-frequency magneto-acoustic waves into the solar chromosphere within small-scale inclined magnetic fields over a quiet-magnetic network region utilizing near-simultaneous photospheric and chro
Externí odkaz:
http://arxiv.org/abs/2304.13492
Autor:
Gopalswamy, N., Christe, S., Fung, S. F., Gong, Q., Gruesbeck, J. R., Jian, L. K., Kanekal, S. G., Kay, C., Kucera, T. A., Leake, J. E., Li, L., Makela, P., Nikulla, P., Reginald, N. L., Shih, A., Tadikonda, S. K., Viall, N., Wilson III, L. B., Yashiro, S., Golub, L., DeLuca, E., Reeves, K., Sterling, A. C., Winebarger, A. R., DeForest, C., Hassler, D. M., Seaton, D. B., Desai, M. I., Mokashi, P. S., Lazio, J., Jensen, E. A., Manchester, W. B., Sachdeva, N., Wood, B., Kooi, J., Hess, P., Wexler, D. B., Bale, S. D., Krucker, S., Hurlburt, N., DeRosa, M., Gosain, S., Jain, K., Kholikov, S., Petrie, G. J. D., Pevtsov, A., Tripathy, S. C., Zhao, J., Scherrer, P. H., Rajaguru, S. P., Woods, T., Kenney, M., Zhang, J., Scolini, C., Cho, K. S., Park, Y. D., Jackson, B. V.
We report on a study of the Multiview Observatory for Solar Terrestrial Science (MOST) mission that will provide comprehensive imagery and time series data needed to understand the magnetic connection between the solar interior and the solar atmosphe
Externí odkaz:
http://arxiv.org/abs/2303.02895
Autor:
Mishra, Sudheer K., Sangal, Kartika, Kayshap, Pradeep, Jelinek, Petr, Srivastava, A. K., Rajaguru, S. P.
We study a blowout jet that occurs at the west limb of the Sun on August 29$^{th}$, 2014 using high-resolution imaging/spectroscopic observations provided by SDO/AIA and IRIS. An inverse $\gamma$-shape flux-rope appears before the jet{--} morphologic
Externí odkaz:
http://arxiv.org/abs/2301.01534
Autor:
Grant, S. D. T., Jess, D. B., Stangalini, M., Jafarzadeh, S., Fedun, V., Verth, G., Keys, P. H., Rajaguru, S. P., Uitenbroek, H., Macbride, C. D., Bate, W., Gilchrist-Millar, C. A.
Solar pores are efficient magnetic conduits for propagating magnetohydrodynamic wave energy into the outer regions of the solar atmosphere. Pore observations often contain isolated and/or unconnected structures, preventing the statistical examination
Externí odkaz:
http://arxiv.org/abs/2209.06280