tag:blogger.com,1999:blog-26036687.post5187451770706686554..comments2023-10-28T11:34:33.746-04:00Comments on a geocentric view: General Exams Beginmollishkahttp://www.blogger.com/profile/16056975190057844089noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-26036687.post-14077187920009806022007-06-05T08:44:00.000-04:002007-06-05T08:44:00.000-04:00anonymous: That's hilarious! I remember, right a...anonymous: That's hilarious! I remember, right around when I graduated, seeing some freshman wrestling with the same isothermal sphere problem I'd been made to do two years earlier. It's good to know my name lives on, though :)<BR/><BR/>Rob: what amuses most me about "quasi-stellar object" in this context is that, aside from a brief historical and quickly dismissed discussion of whether or not the Lyman-α forest is of cosmological origin, in this review "QSO" effectively means "bright point source really far away." Just because 10 years ago that meant AGN doesn't mean that nowadays the same techniques and discussion doesn't also apply to GRBs. Well, okay, and it also amuses me to see a fairly recent discussion of something that uses vocabulary that has gone out of favor so quickly.mollishkahttps://www.blogger.com/profile/16056975190057844089noreply@blogger.comtag:blogger.com,1999:blog-26036687.post-31618366610055219902007-06-05T08:08:00.000-04:002007-06-05T08:08:00.000-04:00Technically speaking, back in the day QSOs and qua...Technically speaking, back in the day QSOs and quasars weren't exactly the same thing.<BR/><BR/>There are a whole slew of names for active galactic nuclei; read the first chapter of Krolik for many of them. Meg Urry told me a few months ago that she's trying to avoid using any names but Quasar and AGN any more, because they're all the same kind of thing, albeit with lots of individual differences-- so distinguishing them all with lots of names invites madness.<BR/><BR/>Once upon a time, quasar was "quasi-stellar radio source," where as QSO implied optical. Both had optical counterparts, but one was discovered in the radio and one was discovered in the optical. But, the relevance of the different predates (even) me being in grad school....<BR/><BR/>-RobAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-26036687.post-2108465133835355402007-06-04T23:53:00.000-04:002007-06-04T23:53:00.000-04:00hi mollishka, i stumbled upon your blog some time ...hi mollishka, i stumbled upon your blog some time ago (linked from science blogs, i think). upon reading this entry, something clicked - narayan and bartelmann was also my first review article! i have a sneaking suspicion that it is because we shared the same undergraduate research advisor. besides assigning the same introductory reading, this advisor also likes to reuse his e-mails - i was the recepient of several copy-and-paste e-mails addressed to a certain "molly," which confused me at first seeing as that is not my name.<BR/><BR/>haha well, small world, etc. just thought i'd let you know. good luck with your exams!Anonymousnoreply@blogger.com