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The present study investigates a mini-filament eruption associated withcancelling magnetic fluxes. The eruption originates from a small-scale loopcomplex commonly known as a Coronal Bright Point (CBP). The event is uniquelyrecorded in both the imaging and spectroscopic data taken with IRIS. We analyseIRIS spectroscopic and slit-jaw imaging observations as well as images taken inthe extreme-ultraviolet channels of AIA, and line-of-sight magnetic-field datafrom HMI onboard the SDO. We also employ an NLFFF relaxation approach based onthe HMI magnetogram time series. We identify a strong small-scale brighteningas a micro-flare in a CBP. The mini-eruption manifests with the ejection of hot(CBP loops) and cool (mini-filament) plasma recorded in both the imaging andspectroscopic data. The micro-flare is preceded by the appearance of anelongated bright feature in the IRIS slit-jaw 1400 A images located above thepolarity inversion line. The micro-flare starts with an IRIS pixel sizebrightening and propagates bi-directionally along the elongated feature. Wedetect in both the spectral and imaging IRIS data and AIA data, strong flowsalong and at the edges of the elongated feature which we believe representreconnection outflows. Both edges of the elongated feature that wrap around theedges of the erupting MF evolve into a J-type shape creating a sigmoidappearance. A quasi-separatrix layer (QSL) is identified in the vicinity of thepolarity inversion line by computing the squashing factor Q in differenthorizontal planes of the NLFFF model. The QSL reconnection site has the samespectral appearance as the so-called explosive events identified by strongblue- and red-shifted emission, thus answering a long outstanding questionabout the true nature of this spectral phenomenon.

Eruptions from coronal bright points: A spectroscopic view by IRIS of a mini-filament eruption, QSL reconnection, and reconnection-driven outflows