CHEOPS observations confirm nodal precession in the WASP-33 system

Autor: Smith, A. M. S., Csizmadia, Sz., Van Grootel, V., Lendl, M., Persson, C. M., Olofsson, G., Ehrenreich, D., Günther, M. N., Heitzmann, A., Barros, S. C. C., Bonfanti, A., Brandeker, A., Cabrera, J., Demangeon, O. D. S., Fossati, L., Harre, J. -V., Hooton, M. J., Hoyer, S., Kalman, Sz., Salmon, S., Sousa, S. G., Szabó, Gy. M., Wilson, T. G., Alibert, Y., Alonso, R., Asquier, J., Bárczy, T., Barrado, D., Baumjohann, W., Benz, W., Billot, N., Borsato, L., Broeg, C., Cameron, A. Collier, Correia, A. C. M., Cubillos, P. E., Davies, M. B., Deleuil, M., Deline, A., Demory, B. -O., Derekas, A., Edwards, B., Egger, J. A., Erikson, A., Fortier, A., Fridlund, M., Gandolfi, D., Gazeas, K., Gillon, M., Güdel, M., Hasiba, J., Helling, Ch., Isaak, K. G., Kiss, L. L., Korth, J., Lam, K. W. F., Laskar, J., Etangs, A. Lecavelier des, Magrin, D., Maxted, P. F. L., Merín, B., Mordasini, C., Nascimbeni, V., Ottensamer, R., Pagano, I., Pallé, E., Peter, G., Piazza, D., Piotto, G., Pollacco, D., Queloz, D., Ragazzoni, R., Rando, N., Rauer, H., Ribas, I., Santos, N. C., Scandariato, G., Ségransan, D., Simon, A. E., Stalport, M., Sulis, S., Udry, S., Ulmer-Moll, S., Venturini, J., Villaver, E., Viotto, V., Walter, I., Walton, N. A., Wolf, S.

Aims: We aim to observe the transits and occultations of WASP-33b, which orbits a rapidly-rotating $\delta$ Scuti pulsator, with the goal of measuring the orbital obliquity via the gravity-darkening effect, and constraining the geometric albedo via t

Externí odkaz: http://arxiv.org/abs/2412.08557

Reputation Management in the ChatGPT Era

Autor: Edwards, Lilian, Binns, Reuben

Publikováno v: ACM Symposium on Computer Science and Law 2025

Generative AI systems often generate outputs about real people, even when not explicitly prompted to do so. This can lead to significant reputational and privacy harms, especially when sensitive, misleading, and outright false. This paper considers w

Externí odkaz: http://arxiv.org/abs/2412.06356

The Spectral Behaviour and Variability of Narrow-line Seyfert 1 Galaxies with Australia Telescope Compact Array Observations

Autor: Shao, Xi, Edwards, Philip G., Stevens, Jamie, Gu, Minfeng, Galvin, Timothy J., Huynh, Minh T.

We present multi-frequency radio data for a sample of narrow-line Seyfert 1 galaxies. We first focus on the sub-class of gamma-ray emitting narrow-line Seyfert 1 galaxies, studying the long-term radio variability of five sources and comparing it to t

Externí odkaz: http://arxiv.org/abs/2412.05933

A joint effort to discover and characterize two resonant mini Neptunes around TOI-1803 with TESS, HARPS-N and CHEOPS

Autor: Zingales, T., Malavolta, L., Borsato, L., Turrini, D., Bonfanti, A., Polychroni, D., Mantovan, G., Nardiello, D., Nascimbeni, V., Lanza, A. F., Bekkelien, A., Sozzetti, A., Broeg, C., Naponiello, L., Lendl, M., Bonomo, A. S., Simon, A. E., Desidera, S., Piotto, G., Mancini, L., Hooton, M. J., Bignamini, A., Egger, J. A., Maggio, A., Alibert, Y., Locci, D., Delrez, L., Biassoni, F., Fossati, L., Cabona, L., Lacedelli, G., Carleo, I., Leonardi, P., Andreuzzi, G., Brandeker, A., Cosentino, R., Correia, A. C. M., Claudi, R., Alonso, R., Damasso, M., Wilson, T. G., Bàrczy, T., Pinamonti, M., Baker, D., Barkaoui, K., Navascues, D. Barrado, Barros, S. C. C., Baumjohann, W., Beck, T., Beichman, C., Benz, W., Bieryla, A., Billot, N., Bosch-Cabot, P., Bouma, L. G., Ciardi, D. R., Cameron, A. Collier, Collins, K. A., Crossfield, Ian J. M., Csizmadia, Sz., Cubillos, P. E., Davies, M. B., Deleuil, M., Deline, A., Demangeon, O. D. S., Demory, B. O., Derekas, A., Dragomir, D., Edwards, B., Ehrenreich, D., Erikson, A., Falk, B., Fortier, A., Fridlund, M., Fukui, A., Gandolfi, D., Gazeas, K., Gillon, M., Gonzales, E., Gudel, M., Guerra, P., Guunther, M. N., Heitzmann, A., Helling, Ch., Howell, S. B., Isaak, K. G., Jenkins, J., Kiss, L. L., Korth, J., Lam, K. W. F., Laskar, J., Etangs, A. Lecavelier des, Magrin, D., Matson, R., Matthews, E. C., Maxted, P. F. L., McDermott, S., Munari, M., Mordasini, C., Narita, N., Olofsson, G., Ottensamer, R., Pagano, I., Pallè, E., Peter, G., Pollacco, D., Queloz, D., Ragazzoni, R., Rando, N., Ratti, F., Rauer, H., Ribas, I., Salmon, S., Santos, N. C., Scandariato, G., Seager, S., Sègransan, D., Smith, A. M. S., Schlieder, J., Schwarz, R. P., Shporer, A., Sousa, S. G., Stalport, M., Steinberger, M., Sulis, S., Szabò, Gy. M., Twicken, J. D., Udry, S., Van Grootel, V., Venturini, J., Villaver, E., Walton, N. A., Winn, J. N.

We present the discovery of two mini Neptunes near a 2:1 orbital resonance configuration orbiting the K0 star TOI-1803. We describe their orbital architecture in detail and suggest some possible formation and evolution scenarios. Using CHEOPS, TESS,

Externí odkaz: http://arxiv.org/abs/2412.05423

First Detection of Radio Emission from the Intermediate Mass Black Hole in POX 52: Deep Multi-Band Observations with ATCA and VLA

Autor: Yuan, Qi, Guo, Hengxiao, Gu, Minfeng, Stevens, Jamie, Edwards, Philip G., Chen, Yongjun, Zuo, Wenwen, Sun, Jingbo, Yang, Jun, Lira, Paulina, An, Tao, Su, Renzhi, Liu, Yuanqi, Wang, Yijun, Chang, Ning, Jiang, Pengfei, Zhang, Ming

We present the first multi-band centimeter detection of POX 52, a nearby dwarf galaxy believed to habor a robust intermediate mass black hole (IMBH). We conducted the deep observations using the Australia Telescope Compact Array (ATCA), spanning freq

Externí odkaz: http://arxiv.org/abs/2412.03316