User talk:Anzibanonzi

Messier 81 image

Hello,

I see that you uploaded the SINGS/Spitzer Space Telescope image of M81. (I processed the 24-160 micron data for the SINGS team.) You should probably provide a link on the Image:Ssc2003-06d2 small.jpg page to the webpage where you got the image. It would also be useful if you wrote a brief description of the image. You can also add a tag to indicate that the image comes from NASA and is therefore in the public domain.

Please contact me if you have additional questions.

Thank you, Dr. Submillimeter 22:06, 3 July 2007 (UTC)[reply]

References

The material that you added to Messier 81 is unreferenced. You need to add references; see Wikipedia:References. I strongly suggest using the footnote citations (in the same style as used in the rest of the article). Dr. Submillimeter 22:38, 3 July 2007 (UTC)[reply]

Do not copy text directly from other webpages

I see that you copied some of the text in Messier 81 from http://www.spitzer.caltech.edu/Media/releases/ssc2003-06/ssc2003-06d.shtml or a related page. You should avoid doing this, especially without citing your sources. Some people might think that it is plagarism. Please cite your sources in the future, and please rewrite the text in your own words. Dr. Submillimeter 22:48, 3 July 2007 (UTC)[reply]

Messier 81

Can I just take the material that you added on Messier 81 and rewrite it? Some of it is not quite accurate (such as the comment on the PAH emission at 8 microns), and the section was not really integrated into the existing text very well at all. Moreover, most of the rest of the article relies on scientific journal articles, books, or NED as references. It would be better to use Gordon's and Willner's (and Perez-Gonzales's) papers as references instead. (I am a co-author on Gordon's and Perez-Gonzales's papers, and I am very familiar with the data.)

In general, cutting and pasting press releases into Wikipedia articles leads to very uneven articles. It would be better to integrate the material into the existing text. Some of the Wikipedia articles are patchworks of press releases, and they look very poorly written. Dr. Submillimeter 23:04, 3 July 2007 (UTC)[reply]

OK, I rewrote the section. Keep in mind that Wikipedia is cross-linked, so it is not necessary to explain the entire history of a subject in each article. For example, a detailed description on interstellar dust probably belongs in the cosmic dust article rather than in Messier 81 article and any article on any other astronomical object observed with Spitzer.

Also, I strongly suggest reviewing Perez-Gonzalez et al. 2006, which demonstrates that 8 micron emission does not necessarily originate entirely from PAHs associated with star formation regions. It may be worth looking at a few other papers that discuss the relation of PAH emission to star formation in other objects as well (Helou et al. 2004, Calzetti et al. 2005, Bendo et al. 2006). Dr. Submillimeter 15:31, 4 July 2007 (UTC)[reply]

Image tagging for Image:Ssc2003-06d1.jpg

Thanks for uploading Image:Ssc2003-06d1.jpg. The image has been identified as not specifying the source and creator of the image, which is required by Wikipedia's policy on images. If you don't indicate the source and creator of the image on the image's description page, it may be deleted some time in the next seven days. If you have uploaded other images, please verify that you have provided source information for them as well.