# Presentation: 295205

## Solar Sources

***Ed Cliver (AFRL)***
***Doug Biesecker (NOAA/SEC)***
*** ***LWS SEP CDAW
-  23-26 July 2002

## Reames (1993) 

***Reames (1993) ***

## Question No. 1

**3-He Rich Events / Sources: **Examine source characteristics of
- the small SEP events associated with flares.  How do they differ
- from those of the large SEP events under investigation?  Do they
- distinguish themselves from other impulsive (flare) acceleration
- events?
***Mike Kaiser***
***Seiji Yashiro***
**Neal Hurlburt**
**Masumi Shimojo**
**Barbara Thompson**

## 3He-rich Sep Events

-      SEP onset time          Solar onset time
-   1  1996 May 14 1400        1996 May 14 1140
-   2  1996 May 15 1000        1996 May 15 0728
-   3  1997 Sep 17 2000        1997 Sep 17 1728
-   4  1997 Sep 18 0300        1997 Sep 18 0000
-   5  1997 Sep 18 2200        1997 Sep 18 1952
-   6  1998 May 17 0800        1998 May 17 0444
-   7  1999 Feb 20 0600        1999 Feb 20 0400
-   8  1999 Feb 20 1700        1999 Feb 20 1512
-   9  1999 Feb 23 0200        1999 Feb 22 2350
-  10  1999 Mar 11 0200        1999 Mar 11 0004?
-  11  1999 Mar 21 0800        1999 Mar 21 0556
-  12  1999 Mar 21 1400        1999 Mar 21 1232
-  13  1999 Mar 21 1900        1999 Mar 21 1652?
-  14  1999 Mar 22 2200        1999 Mar 22 1924
-  15  1999 Jun 18 1500        1999 Jun 18 1128, 1400
-  16  1999 Aug  7 2000        1999 Aug  7 1704
-  17  1999 Aug 26 0100        1999 Aug 25 2228
-  18  1999 Dec 26 2000        1999 Dec 26 1616, 1654
-  ...
-  24  2000 Aug 22 1900        2000 Aug 22 1816
-  25  2000 Sep 27 0800        2000 Sep 27 0312, 0140
-  26  2000 Dec 22 0800        2000 Dec 22 0608, 0444
-  27  2000 Dec 28 0100        2000 Dec 27 2340, 28 0204
-  28  2001 Apr 14 1800        2001 Apr 14 1715
-  29  2001 sep  8 1200        2001 Sep  8 1004?
-  30  2001 sep 22 1000        2001 Sep 22 0544
-  31  2001 dec 22 0200        2001 Dec 21 2219
-  32  2002 Feb  4 0800        2002 Feb  4 0430, 0524
-  33  2002 Feb  5 1500        2002 Feb  5 1130
-  34  2002 Feb 25 1600        2002 Feb 25 1509?
-  35  2002 Feb 26 2000        2002 Feb 26 1704
-  36  2002 Apr 14 1400        2002 Apr 14 0730?, 1230
-  37  2002 Apr 15 0000        2002 Apr 14 2224
-  38  2002 Apr 15 0500        2002 Apr 14 0250

**3****He-rich Sep Events**

## Question No. 2

**Interacting CMEs:** Examination of novel SEP acceleration
- signature.**  **How do colliding CMEs or shocks alter the
- abundances? The spectra? Are there any features in the SEPs
- that coincide with the times of CME collisions?
***Ian Richardson***** **
**Terry Kucera**
**Gareth Lawrence**
**Mike Reiner **
**Adam Szabo**

## Interacting CMEs & SEP Acceleration

**Interacting CMEs & SEP Acceleration**

***Gopalswamy et al. (2001)***

## Question No. 3

**Type III *****l*****’s & SEPs:** Examination of novel SEP acceleration
- signature.  Are electron accelerators also proton accelerators?
***Bob MacDowall***
**Peter Gallagher**
**Alejandro Lara**
**P.K. Manoharan**
**Nariaki Nitta **

## Cane et al. (2002)

***Cane et al. (2002)***

## Question No. 4

**CME / SEP Injection Timing: **Where is the CME at the onset
- of SEP injection?  What is the relationship between electron (ion)
- injection onset and the timing of other acceleration signatures,
- e.g., Type IIIs?
***Dennis Haggerty ***
**Russ Howard**
**George Simnett**
**Jie Zhang**

## Question No. 5

**SEP Source (non-source) Characteristics: **How are flares/
- CMEs that produce SEPs distinguished from those that do not?
- What are the primary characteristics that make a CME or flare
- produce SEPs?  How does shock history affect SEP intensities,
- spectra, composition?
***Ed Cliver***
**Doug Biesecker**
**Hilary Cane**
**Sam Freeland**
**Jack Ireland**
**Dalmiro Maia**

## Spreadsheets:

**48 W/S Events**
**46 Control (non-SEP) Events**
** ****- 26 Based on Flares (> W30, >M3)**
** ****- 20 Based on Fast CMEs (>W30, >700 km/s)**
**Column Entries: Characteristics (intensity, timing, etc.) of Acceleration Signatures (CMEs, type IIs, Interacting CMEs, type III *****l’s*****, EIT Waves)**
**(for comparison with SEP intensities, spectra, composition, etc.)**

## Basic Approach

**Look at Detailed Solar Data & Synoptic SEP Data**
**Focus on Questions**
**Complete Spreadsheets**
**Caveats/Cautions**
**Some of the listed associations suspect (28 Jul 00,**
** ****11 Aug 00, 26 Nov 00, 7 May 2001, 28 Dec 01, 30 Dec 01)  **
**- Many behind-the-limb events (13/48)**