Mass limit on Nemesis

dc.contributor.author	Bhalerao, V
dc.contributor.author	Vahia, M. N
dc.date.accessioned	2006-03-14T04:43:41Z
dc.date.available	2006-03-14T04:43:41Z
dc.date.issued	2005-03
dc.identifier.citation	BASI, Vol. 33, No. 1, pp. 27-33	en
dc.identifier.uri	http://hdl.handle.net/2248 /750
dc.description.abstract	We assume that if the sun has a companion, it has a period of 27 Myr corresponding to the periodicity seen in cometary impacts on earth. Based on this assumption, it is seen that the inner Lagrangian point of the interaction between the Sun and its companion is in the Oort cloud. From this we calculate the mass ? distance relation for the companion. We then compute the expected apparent magnitude (visible and J band) for the companion using the models of Burrows (1993). We then compare this with the catalogue completeness of optical and infrared catalogues to show that the sun cannot have a companion of mass greater than 44 Mjup (0.042 MO dot ).	en
dc.format.extent	194149 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	Minor planets	en
dc.subject	asteroids - Oort Cloud - Solar system	en
dc.subject	general (stars:) binaries	en
dc.subject	brown dwarfs	en
dc.title	Mass limit on Nemesis	en
dc.type	Article	en