Zobrazeno 1 - 10
of 3 481
pro vyhledávání: '"Sim S"'
Autor:
Laura D. Ngau, Sim S. Fong, Kho L. Khoon, Elisa Rumpang, Harri Vasander, Jyrki Jauhiainen, Kim Yrjälä, Hanna Silvennoinen
Publikováno v:
Mires and Peat, Vol 28, Iss 13, Pp 1-17 (2022)
Water table conditions in drained peatlands affect peat decomposition, fluvial carbon and greenhouse gas emissions, and plant growth in oil palm plantations. This study illustrates the spatial heterogeneity of soil moisture profiles in cultivated tro
Externí odkaz:
https://doaj.org/article/4d0d63ee7ad04520b61487337c6ffe64
Autor:
Callan, F. P., Collins, C. E., Sim, S. A., Shingles, L. J., Pakmor, R., Srivastav, S., Pollin, J. M., Gronow, S., Roepke, F. K., Seitenzahl, I. R.
In the double detonation scenario the ignition of a surface He detonation on a sub-Chandrasekhar mass white dwarf leads to a secondary core detonation. Double detonation models have shown promise for explaining Type Ia supernovae (SNe Ia) with a vari
Externí odkaz:
http://arxiv.org/abs/2408.03048
Autor:
Pollin, J. M., Sim, S. A., Pakmor, R., Callan, F. P., Collins, C. E., Shingles, L. J., Roepke, F. K., Srivastav, S.
A leading model for Type Ia supernovae involves the double-detonation of a sub-Chandrasekhar mass white dwarf. Double-detonations arise when a surface helium shell detonation generates shockwaves that trigger a core detonation; this mechanism may be
Externí odkaz:
http://arxiv.org/abs/2408.00917
Autor:
Callan, F. P., Sim, S. A., Collins, C. E., Shingles, L. J., Lach, F., Roepke, F. K., Pakmor, R., Kromer, M., Srivastav, S.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 530, Issue 2, May 2024, Pages 1457 to 1473
Type Iax supernovae (SNe Iax) are proposed to arise from deflagrations of Chandrasekhar mass white dwarfs (WDs). Previous deflagration simulations have achieved good agreement with the light curves and spectra of intermediate-luminosity and bright SN
Externí odkaz:
http://arxiv.org/abs/2403.15084
Autor:
Pakmor, R., Seitenzahl, I. R., Ruiter, A. J., Sim, S. A., Roepke, F. K., Taubenberger, S., Bieri, R., Blondin, S.
Publikováno v:
A&A 686, A227 (2024)
Theoretical and observational approaches to settling the important questions surrounding the progenitor systems and the explosion mechanism of normal Type Ia supernovae have thus far failed. With its unique capability to obtain continuous spectra thr
Externí odkaz:
http://arxiv.org/abs/2402.11010
Autor:
T., Moore, J., Smartt S., M., Nicholl, S., Srivastav, F., Stevance H., B., Jess D., T., Grant S. D., D., Fulton M., L., Rhodes, A., Sim S., R., Hirai, P., Podsiadlowski, P., Anderson J., C., Ashall, W., Bate, R., Fender, P., Gutierrez C., A., Howell D., E., Huber M., C., Inserra, G., Leloudas, G., Monard L. A., E., Muller-Bravo T., J., Shappee B., W., Smith K., G., Terreran, J., Tonry, A., Tucker M., R., Young D., A., Aamer, -W., Chen T., F., Ragosta, L., Galbany, M., Gromadzki, L., Harvey, P., Hoeflich, C., McCully, M., Newsome, P., Gonzalez E., C., Pellegrino, P., Ramsden, M., Perez-Torres, J., Ridley E., X., Sheng, J, Weston
We present multi-wavelength photometry and spectroscopy of SN 2022jli, an unprecedented Type Ic supernova discovered in the galaxy NGC 157 at a distance of $\approx$ 23 Mpc. The multi-band light curves reveal many remarkable characteristics. Peaking
Externí odkaz:
http://arxiv.org/abs/2309.12750
Autor:
Srivastav, Shubham, Moore, T., Nicholl, M., Magee, M. R., Smartt, S. J., Fulton, M. D., Sim, S. A., Pollin, J. M., Galbany, L., Inserra, C., Kozyreva, A., Moriya, Takashi J., Callan, F. P., Sheng, X., Smith, K. W., Sommer, J. S., Anderson, J. P., Deckers, M., Gromadzki, M., Müller-Bravo, T. E., Pignata, G., Rest, A., Young, D. R.
We present optical photometric and spectroscopic observations of the 02es-like type Ia supernova (SN) 2022ywc. The transient occurred in the outskirts of an elliptical host galaxy and showed a striking double-peaked light curve with an early excess f
Externí odkaz:
http://arxiv.org/abs/2308.06019
Binary neutron star mergers are the first confirmed site of rapid neutron capture (r-process) element nucleosynthesis. The kilonova AT2017gfo is the only electromagnetic counterpart of a neutron star merger spectroscopically observed. We analyse the
Externí odkaz:
http://arxiv.org/abs/2306.15055
Autor:
Nagao, T., Kuncarayakti, H., Maeda, K., Moore, T., Pastorello, A., Mattila, S., Uno, K., Smartt, S. J., Sim, S. A., Ferrari, L., Tomasella, L., Anderson, J. P., Chen, T. -W., Galbany, L., Gao, H., Gromadzki, M., Gutiérrez, C. P., Inserra, C., Kankare, E., Magnier, E. A., Müller-Bravo, T. E., Reguitti, A., Young, D. R.
Publikováno v:
A&A 673, A27 (2023)
We present photometric and spectroscopic observations of the Type Icn supernova (SN) 2021ckj. Spectral modeling of SN 2021ckj reveals that its composition is dominated by oxygen, carbon and iron group elements, and the photospheric velocity at peak i
Externí odkaz:
http://arxiv.org/abs/2303.07721
Autor:
Fulton, M. D., Smartt, S. J., Rhodes, L., Huber, M. E., Villar, A. V., Moore, T., Srivastav, S., Schultz, A. S. B., Chambers, K. C., Izzo, L., Hjorth, J., Chen, T. -W., Nicholl, M., Foley, R. J., Rest, A., Smith, K. W., Young, D. R., Sim, S. A., Bright, J., Zenati, Y., de Boer, T., Bulger, J., Fairlamb, J., Gao, H., Lin, C. -C., Lowe, T., Magnier, E. A., Smith, I. A., Wainscoat, R., Coulter, D. A., Jones, D. O., Kilpatrick, C. D., McGill, P., Ramirez-Ruiz, E., Lee, K. -S., Narayan, G., Ramakrishnan, V., Ridden-Harper, R., Singh, A., Wang, Q., Kong, A. K. H., Ngeow, C. -C., Pan, Y. -C., Yang, S., Davis, K. W., Piro, A. L., Rojas-Bravo, C., Sommer, J., Yadavalli, S. K.
We present extensive optical photometry of the afterglow of GRB~221009A. Our data cover $0.9 - 59.9$\,days from the time of \textit{Swift} and \textit{Fermi} GRB detections. Photometry in $rizy$-band filters was collected primarily with Pan-STARRS an
Externí odkaz:
http://arxiv.org/abs/2301.11170