Zobrazeno 1 - 10
of 4 845
pro vyhledávání: '"Mayne, P."'
Steering vectors are a promising approach to control the behaviour of large language models. However, their underlying mechanisms remain poorly understood. While sparse autoencoders (SAEs) may offer a potential method to interpret steering vectors, r
Externí odkaz:
http://arxiv.org/abs/2411.08790
Publikováno v:
NeurIPS 2024 Workshop on Foundation Model Interventions (MINT)
Safety fine-tuning algorithms are commonly used to fine-tune language models to reduce harmful outputs, but the exact internal mechanisms of how those models achieve this remain unclear. In studying direct preference optimisation (DPO) for toxicity r
Externí odkaz:
http://arxiv.org/abs/2411.06424
Autor:
Braam, Marrick, Palmer, Paul I., Decin, Leen, Mayne, Nathan J., Manners, James, Rugheimer, Sarah
Terrestrial exoplanets around M- and K-type stars are important targets for atmospheric characterisation. Such planets are likely tidally locked with the order of spin-orbit resonances (SORs) depending on eccentricity. We explore the impact of SORs o
Externí odkaz:
http://arxiv.org/abs/2410.19108
Autor:
Bennett, Katherine A., Sing, David K., Stevenson, Kevin B., Wakeford, Hannah R., Rustamkulov, Zafar, Allen, Natalie H., Lothringer, Joshua D., MacDonald, Ryan J., Mayne, Nathan J., Fu, Guangwei
Which rocky exoplanets have atmospheres, and which do not? This presumably simply question is the first that must be answered in the pathway toward understanding the prevalence of nearby habitable planets. A mere 6.9 pc from Earth, the LTT 1445A syst
Externí odkaz:
http://arxiv.org/abs/2410.11054
Autor:
Kirk, James, Ahrer, Eva-Maria, Claringbold, Alastair B., Zamyatina, Maria, Fisher, Chloe, McCormack, Mason, Panwar, Vatsal, Powell, Diana, Taylor, Jake, Thorngren, Daniel P., Christie, Duncan A., Esparza-Borges, Emma, Tsai, Shang-Min, Alderson, Lili, Booth, Richard A., Fairman, Charlotte, López-Morales, Mercedes, Mayne, N. J., Meech, Annabella, Molliere, Paul, Owen, James E., Penzlin, Anna B. T., Sergeev, Denis E., Valentine, Daniel, Wakeford, Hannah R., Wheatley, Peter J.
We present a transmission spectrum of the misaligned hot Jupiter WASP-15b from 2.8--5.2 microns observed with JWST's NIRSpec/G395H grating. Our high signal to noise data, which has negligible red noise, reveals significant absorption by H$_2$O ($4.2\
Externí odkaz:
http://arxiv.org/abs/2410.08116
Autor:
Carter, A. L., May, E. M., Espinoza, N., Welbanks, L., Ahrer, E., Alderson, L., Brahm, R., Feinstein, A. D., Grant, D., Line, M., Morello, G., O'Steen, R., Radica, M., Rustamkulov, Z., Stevenson, K. B., Turner, J. D., Alam, M. K., Anderson, D. R., Batalha, N. M., Battley, M. P., Bayliss, D., Bean, J. L., Benneke, B., Berta-Thompson, Z. K., Brande, J., Bryant, E. M., Burleigh, M. R., Coulombe, L., Crossfield, I. J. M., Damiano, M., Désert, J. -M., Flagg, L., Gill, S., Inglis, J., Kirk, J., Knutson, H., Kreidberg, L., Morales, M. López, Mansfield, M., Moran, S. E., Murray, C. A., Nixon, M. C., de la Roche, D. J. M. Petit dit, Rackham, B. V., Schlawin, E., Sing, D. K., Wakeford, H. R., Wallack, N. L., Wheatley, P. J., Zieba, S., Aggarwal, K., Barstow, J. K., Bell, T. J., Blecic, J., Caceres, C., Crouzet, N., Cubillos, P. E., Daylan, T., de Val-Borro, M., Decin, L., Fortney, J. J., Gibson, N. P., Heng, K., Hu, R., Kempton, E M. -R., Lagage, P., Lothringer, J. D., Lustig-Yaeger, J., Mancini, L., Mayne, N. J., Mayorga, L. C., Molaverdikhani, K., Nasedkin, E., Ohno, K., Parmentier, V., Powell, D., Redfield, S., Roy, P., Taylor, J., Zhang, X.
Observing exoplanets through transmission spectroscopy supplies detailed information on their atmospheric composition, physics, and chemistry. Prior to JWST, these observations were limited to a narrow wavelength range across the near-ultraviolet to
Externí odkaz:
http://arxiv.org/abs/2407.13893
Autor:
Espinoza, Néstor, Steinrueck, Maria E., Kirk, James, MacDonald, Ryan J., Savel, Arjun B., Arnold, Kenneth, Kempton, Eliza M. -R., Murphy, Matthew M., Carone, Ludmila, Zamyatina, Maria, Lewis, David A., Samra, Dominic, Kiefer, Sven, Rauscher, Emily, Christie, Duncan, Mayne, Nathan, Helling, Christiane, Rustamkulov, Zafar, Parmentier, Vivien, May, Erin M., Carter, Aarynn L., Zhang, Xi, López-Morales, Mercedes, Allen, Natalie, Blecic, Jasmina, Decin, Leen, Mancini, Luigi, Molaverdikhani, Karan, Rackham, Benjamin V., Palle, Enric, Tsai, Shang-Min, Ahrer, Eva-Maria, Bean, Jacob L., Crossfield, Ian J. M., Haegele, David, Hébrard, Eric, Kreidberg, Laura, Powell, Diana, Schneider, Aaron D., Welbanks, Luis, Wheatley, Peter, Brahm, Rafael, Crouzet, Nicolas
Transmission spectroscopy has been a workhorse technique over the past two decades to constrain the physical and chemical properties of exoplanet atmospheres. One of its classical key assumptions is that the portion of the atmosphere it probes -- the
Externí odkaz:
http://arxiv.org/abs/2407.10294
Planetary surface habitability has so far been, in the main, considered in its entirety. The increasing popularity of 3D modelling studies of (exo)planetary climate has highlighted the need for a more nuanced understanding of surface habitability. Us
Externí odkaz:
http://arxiv.org/abs/2407.05838
Autor:
Kirk, James, Ahrer, Eva-Maria, Penzlin, Anna B. T., Owen, James E., Booth, Richard A., Alderson, Lili, Christie, Duncan A., Claringbold, Alastair B., Esparza-Borges, Emma, Fisher, Chloe E., López-Morales, Mercedes, Mayne, N. J., McCormack, Mason, Meech, Annabella, Panwar, Vatsal, Powell, Diana, Taylor, Jake, Sergeev, Denis E., Valentine, Daniel, Wakeford, Hannah R., Wheatley, Peter J., Zamyatina, Maria
A primary objective of exoplanet atmosphere characterisation is to learn about planet formation and evolution, however, this is challenged by degeneracies. To determine whether differences in atmospheric composition can be reliably traced to differen
Externí odkaz:
http://arxiv.org/abs/2407.03198
Autor:
Penzlin, Anna B. T., Booth, Richard A., Kirk, James, Owen, James E., Ahrer, Eva-Maria, Christie, Duncan A., Claringbold, Alastair B., Esparza-Borges, Emma, López-Morales, M., Mayne, N. J., McCormack, Mason, Meech, Annabella, Panwar, Vatsal, Powell, Diana, Sergeev, Denis E., Taylor, Jake, Wheatley, Peter J., Zamyatina, Maria
Hot Jupiters present a unique opportunity for measuring how planet formation history shapes present-day atmospheric composition. However, due to the myriad pathways influencing composition, a well-constructed sample of planets is needed to determine
Externí odkaz:
http://arxiv.org/abs/2407.03199