Munari, Istituto Nazionale di Astrofisica, Padova Astronomical Observatory A. ValisaĢ011 Astronomy & Astrophysics arXiv:1110.2801v1 CastellaniĢ011 January, MNRAS Letters, vol 410, L52-L56įormation of a disk structure in the symbiotic binary AX Per during its 2007-10 precursor-type activityĪ. The 2010 nova outburst of the symbiotic Mira V407 Cyg L., Tomaselli, S., Tomasoni, S., Vagnozzi, A., Valisa, P. Munari, U., Bacci, S., Baldinelli, L., Castellani, F., Cetrulo, G., Cherini, G., Dallaporta, S., Dallavia, G., Englaro, A., Frigo, A., Graziani, M., Luppi, V., Maitan, A., Marangoni, C., Milani, A., Moretti, S., Moschini, F., Ochner, P., Siviero, A., Righetti, G. SUPERNOVA 2012fm IN UGC 3528 = PSN J06561339+8404502 Belligoli R, Castellani F.ĪBELL-35 PHENOMENA IN SYMBIOTIC STARS: DISCOVERY OF 1.2 AND 6.4 DAY PERIODS IN VV8 (V471 PER) Page, K.L., Osborne, J.P., Munari, U., Wagner, R.M., Beardmore, A.P., Castellani, F., Dallaporta, S., Shore, S.N., Starrfield, S., Woodward, C.E. The decline of the super-soft X-ray source in Nova Mon 2012. Munari, U., Dallaporta, S., Cherini, G., Castellani, F., Cetrulo, G., Valisa, P., Graziani, M. Is Nova Cep 2013 currently forming dust ? Munari, U., Dallaporta S., Castellani F., Belligoli R., Cherini G., Righetti G.L., Graziani M., Valisa P., Milani A. Nova Cephei 2013 has emerged from dust obscuration Munari, U., Henden, A., Belligoli, R., Castellani, F., Cherini, G., Righetti, G.L., Vagnozzi, A. Munari, U., Dallaporta, S., Castellani, F., Valisa, P., Frigo, A., Chomiuk, L., Ribeiro, V.A.R.M.Īn ongoing active phase for the old symbiotic nova AG Peg Munari, U., Valisa, P., Dallaporta, S., Cherini, G.L. Photometric evolution, orbital modulation and progenitor of Nova Mon 2012. The Metrology of Supernova Lightcurves 223rd American Astronomical Society MeetingĪuthors: Rust, Bert W.1 Mullen, Katharine M.2 Institutions: 1. The symbiotic star TX CVn has entered an active state. Study of three 2013 novae: V1830 Aql, V556 Ser and V809 Cep "The prototype symbiotic star AX Per is in outburst" “The symbiotic star Hen 2-468 is undergoing a rare and bright outburst” "The symbiotic binary and super-soft X-ray source AG Dra is going into outburst" The following list shows the first 100 pages that use this file only.SUPERNOVA 2015Q IN NGC 3888 = PSN J11473508+5558147Īdditional CCD magnitudes for 2015Q: 19.905, 16.3 ( R. The image is shown in units of brightness temperature, T b = S λ 2 / 2 k B Ω |date= 19:06:10 |source=,, [h.
This image is the average of three different imaging methods after convolving each with a circular Gaussian kernel to give matched resolutions. They were then painstakingly converted into an image using novel computational tools developed by the collaboration. These data were flown to highly specialised supercomputers - known as correlators - at the Max Planck Institute for Radio Astronomy and MIT Haystack Observatory to be combined. Each telescope of the EHT produced enormous amounts of data – roughly 350 terabytes per day – which was stored on high-performance helium-filled hard drives.
These observations were collected at a wavelength of 1.3 mm in the 2017 campaign. While this may sound large, this ring is only about 40 microarcseconds across - equivalent to measuring the length of a credit card on the surface of the Moon.Īlthough the telescopes making up the EHT are not physically connected, they are able to synchronize their recorded data with atomic clocks - hydrogen masers - which precisely time their observations. The black hole’s boundary - the event horizon from which the EHT takes its name - is around 2.5 times smaller than the shadow it casts and measures just under 40 billion km across. In this image of M87* taken on 11 April 2017 (a representative example of the images collected in a global 2017 EHT campaign), the shadow of a black hole is the closest we can come to an image of the black hole itself, a completely dark object from which light cannot escape. In coordinated press conferences across the globe, EHT researchers revealed that they succeeded, unveiling the first direct visual evidence of the supermassive black hole in the centre of Messier 87 and its shadow. English: The Event Horizon Telescope (EHT) - a planet-scale array of eight ground-based radio telescopes forged through international collaboration - was designed to capture images of a black hole.
0 kommentar(er)
