There are many sources available on internet (see this which claim that worshipping Goddess Chinnmasta pleases Rahu, so the ill effects of Rahu are pacified by worshipping her. Many websites (like this)write that worshipping Goddess Durga also pacifies Rahu.
Also, this website tells that worshipping Lord Hanuman also pacifies ill effects of Rahu because Lord Hanuman rescued all the 9 planets from the demon Ravan. What is the scriptural basis for any of this information ? In which Hindu scriptures it is written that worshipping either of the three deities mentioned above is a remedy for Rahu ?
What is the mythological story behind it ? Like for Shani (Saturn), it is known that worshipping Lord Hanuman saves one from the ill effects of Shani because Lord Hanuman broke the false pride of Shani once. Please quote authentic references from scriptures. Not just folklore stories. Thanks.