(meteorobs) e-Eridanids

[Mikhail Maslov]

Lew,
This paper address is
http://aio.arc.nasa.gov/~leonid/ICARUSLP-final.pdf
The full name is epsilon-Eridanids. The stream is also known as
pi-Eridanids and gamma-Eridanids. In "Unusual meteor streams of
2004" Sergey Shanov notes, that in the night of September 10/11 an
enhanced activity of small stream epsilon-Eridanids was seen. After
13.00 UT Marry Gaisky [translation is from Russian, name may be
incorrectly written] observed step by step hourly rates of 0, 3, 11, 34
meteors belonging to the stream. Lm was at 5.6 mag, till 13.00 UT
radiant was below horizon. Later director of WAMS Jeff Wood estimated
maximum ZHR at 170+/-50. Esko Lyytinen and Peter Jenniskens suggested
that an outburst can be caused by trail of unknown long-period comet.

The rest is in the first message. In addition, stream radiant on
September 11 is at RA=56 deg, Dec=-14 deg. Velocity is 57 km/sec,
so meteors would be fast. The paper contains a large list of possible
outbursts from long-period comets till 2050.

Best regards, Mikhail Maslov



LJG> Mikhail, thanks for raising this topic on the list! I was not
LJG> aware of the particular prediction you mention. Does the "e-"
LJG> in your "e-Eridanids" refer to "epsilon", or "eta"? Also, does
LJG> the paper you mention provide any further information on this
LJG> predicted activity - velocity of the meteors relative to earth,
LJG> exact position (and drift) of the predicted radiant, predicted
LJG> period of activity (and length of any outburst), etc.?

LJG> It would certainly be nice to have some additional activity to
LJG> be "on the lookout for" in September! Even if it didn't appear,
LJG> it would indeed be a good reason just to observe... :)

LJG> Clear skies,
LJG> Lew


>> -----Original Message-----
>> From: meteorobs-bounces at meteorobs.org
>> [mailto:meteorobs-bounces at meteorobs.org] On Behalf Of Mikhail Maslov
>> Sent: Sunday, August 22, 2004 12:18 PM
>> To: meteorobs at meteorobs.org
>> Subject: (meteorobs) e-Eridanids
>>
>>
>> Hi, all.
>>
>> Now after Perseids people starts talking about future highlights -
>> Orionids, Leonids and even Geminids. I'd like to remind, that there is
>> a prediction of a possible outburst in the several week. I mean the
>> paper "Meteor Outbursts From Long Period Comets" by Esko Lyytinen and
>> Peter Jenniskens, in which among other they suggested, that if
>> e-Eridanids are formed by long-period comet, there is a possibility
>> thet Earth will pass at 0.00127 a.u. from dust trail causing the
>> outburst. Predicted time is 11 september 18:01 UT. It is noted that
>> Earth could face only the edge of trail.
>> This forecast is much less confident than of Leonids and Perseids
>> activity, but if it was not revised (I have no such information), it
>> is at least the reason to observe. The Moon will not interfere.
>> Any comments?
>>
>> Best regards, Mikhail Maslov.



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