Optical spectropolarimetry of binary asteroid Didymos-Dimorphos before and after the DART impact

Autor: Bagnulo, S., Gray, Z., Granvik, M., Cellino, A., Kolokolova, L., Muinonen, K., Munoz, O., Opitom, C., Penttila, A., Snodgrass, C.

We have monitored the Didymos-Dimorphos binary asteroid in spectropolarimetric mode in the optical range before and after the DART impact. The ultimate goal was to obtain constraints on the characteristics of the ejected dust for modelling purposes.

Externí odkaz: http://arxiv.org/abs/2303.11776

CUBES: a UV spectrograph for the future

Autor: Covino, S., Cristiani, S., Alcala', J. M., Alencar, S. H. P., Balashev, S. A., Barbuy, B., Bastian, N., Battino, U., Bissell, L., Bristow, P., Calcines, A., Calderone, G., Cambianica, P., Carini, R., Carter, B., Cassisi, S., Castilho, B. V., Cescutti, G., Christlieb, N., Cirami, R., Conzelmann, R., Coretti, I., Cooke, R., Cremonese, G., Cunha, K., Cupani, G., da Silva, A. R., D'Auria, D., De Caprio, V., De Cia, A., Dekker, H., D'Elia, V., De Silva, G., Diaz, M., Di Marcantonio, P., D'Odorico, V., Ernandes, H., Evans, C., Fitzsimmons, A., Franchini, M., Gaensicke, B., Genoni, M., Giribaldi, R. E., Gneiding, C., Grazian, A., Hansen, C. J., Hopgood, J., Kosmalski, J., La Forgia, F., La Penna, P., Landoni, M., Lazzarin, M., Lunney, D., Maciel, W., Marcolino, W., Marconi, M., Migliorini, A., Miller, C., Modigliani, A., Noterdaeme, P., Oggioni, L., Opitom, C., Pariani, G., Pilecki, B., Piranomonte, S., Quirrenbach, A., Redaelli, E. M. A., Pereira, C. B., Randich, S., Rossi, S., Sanchez-Janssen, R., Schoeller, M., Seifert, W., Smiljanic, R., Snodgrass, C., Squalli, O., Stilz, I., Stuermer, J., Trost, A., Vanzella, E., Ventura, P., Verducci, O., Waring, C., Watson, S., Wells, M., Wright, D., Zafar, T., Zanutta, A., Zins, G.

In spite of the advent of extremely large telescopes in the UV/optical/NIR range, the current generation of 8-10m facilities is likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrog

Externí odkaz: http://arxiv.org/abs/2212.12791

Water, hydrogen cyanide, carbon monoxide, and dust production from distant comet 29P/Schwassmann-Wachmann 1

Autor: Bockelée-Morvan, D., Biver, N., Schambeau, C. A., Crovisier, J., Opitom, C., Borro, M. de Val, Lellouch, E., Hartogh, P., Vandenbussche, B., Jehin, E., Kidger, M., Küppers, M., Lis, D. C., Moreno, R., Szutowicz, S., Zakharov, V.

29P/Schwassmann-Wachmann 1 is a distant Centaur/comet, showing persistent CO-driven activity and frequent outbursts. We used the Herschel space observatory in 2010, 2011, and 2013 to observe H$_2$O and NH$_3$ and to image the dust coma. Observations

Externí odkaz: http://arxiv.org/abs/2205.11425

MUSE observations of comet 67P/Churyumov-Gerasimenko: A reference for future comet observations with MUSE

Autor: Opitom, C., Guilbert-Lepoutre, A., Besse, S., Yang, B., Snodgrass, C.

Publikováno v: A&A 644, A143 (2020)

Observations of comet 67P/Churyumov-Gerasimenko were performed with MUSE at large heliocentric distances post-perihelion, between March 3 and 7, 2016. Those observations were part of a simultaneous ground-based campaign aimed at providing large-scale

Externí odkaz: http://arxiv.org/abs/2010.05064

Atomic carbon, nitrogen, and oxygen forbidden emission lines in the water-poor comet C/2016 R2 (Pan-STARRS)

Autor: Raghuram, S., Hutsemékers, D., Opitom, C., Jehin, E., Bhardwaj, A., Manfroid, J.

Publikováno v: A&A 635, A108 (2020)

The N$_2$ and CO-rich and water-depleted comet C/2016 R2 (Pan-STARRS) (hereafter `C/2016 R2') is a unique comet for detailed spectroscopic analysis. We aim to explore the associated photochemistry of parent species, which produces different metastabl

Externí odkaz: http://arxiv.org/abs/2001.03315