Context: The study of asteroids that present sporadic cometary activity is of fundamental importance to address several astronomical problems including the end...
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PublicationThe nature of comet-asteroid transition object (3200) Phaethon
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PublicationThe population, magnitudes, and sizes of Jupiter family comets
We analyze the sample of measured nuclear magnitudes of the observed Jupiter family (JF) comets (taken as those with orbital periods P < 20 years and Tisserand...
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PublicationThe Rotation Period of C/1995 01 (Hale-Bopp)
C/1995 O1 (Hale-Bopp) was observed in daylight on 16 days between 1997 April 1 and 1997 April 28, five of which had long time sequences (up to 10 hr of data)...
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PublicationThe Rotation Period of C/2014 Q2 (Lovejoy)
C/2014 Q2 (Lovejoy) was observed around perihelion (2015 January 30) on 15 nights between 2015 January 21 and February 11 using the TADer 0.3-m astrograph...
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PublicationThe Round Table Discussion: How Should We Take Best Advantage of the New Generation of Large Telescopes for Cometary Research?
The highlights of the round table discussion held to discuss the most important pending problems in cometary astrophysics are reported. A number of experts...
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PublicationThe size distribution of asteroids in cometary orbits and related populations
Aims.In this work we study the cumulative size distribution of the population of asteroids in cometary orbits (ACOs), aiming to discriminate its cometary or...
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PublicationThe visible and near-infrared spectra of asteroids in cometary orbits
Context. Dynamical and albedo properties suggest that asteroids in cometary orbits (ACOs) are dormant or extinct comets. Their study provides new insights for...
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PublicationThe Visual Light Curve Of C/1995 O1 (Hale-Bopp) From Discovery To Late 1997
We present a light curve of C/1995 O1 (Hale-Bopp) compiledfrom more than 3000 visual observations of the comet made by members of the The Astronomer Group world...
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PublicationThe Volatile Composition of Comet 17P/Holmes after its Extraordinary Outburst
The volatile abundances in comet 17P/Holmes were measured on three dates (UT 2007 October 27.6 and 31.3 and November 2.3) using high-dispersion (λ/Δλ~2.5×104)...