All @blackholemapper.bsky.social science programs are available here, www.sdss.org/dr19/bhm/pro..., and they include time domain programs such AQMES (All-Quasar Multi-Epoch Spectroscopy and reverberation mapping, X-ray follow-up programs.

Black Hole Mapper also has a range of tutorials available to get you started working on the data: www.sdss.org/dr19/tutoria... #DR19

First we have a tutorial around some basic themes relating to @blackholemapper.bsky.social . This introduces quasar spectra and redshift before moving in to time domain astronomy and looking at spectroscopic variability.

You can find it here www.sdss.org/dr19/tutoria... 2/4

about the BLR structure and how they change based on the luminosity state of the quasar. This has implications for the use of reverberation mapping in this source to measure a black hole mass, and more! (3/3)

This paper presents a velocity-resolved analysis of reverberation mapping data of the quasar SDSS-RM 160, which is a hypervariable quasar found to display odd/interesting behavior in its BLR. The team uses reverberation mapping techniques to uncover details (2/3)

They use this sample to look for and report on trends in various properties of AGN that show this behavior, such as accretion rate, and examine the behavior of different emission lines.
(3/3)

This work reports the results of a large-scale search for changing-look AGN (AGN that show dramatic variability and/or changes in "type") with first-year SDSS-V BHM spectroscopy. They found 116 changing-look AGN, the largest number of changing-look AGN ever reported!
(2/3)

Accelerating quasar winds have been reported before, but with 130 observations from SDSS spread over 8 years, researchers were able to show the acceleration at high confidence. These results were also reported by several news outlets: For example, see www.newsweek.com/supermassive... (3/3)

This paper reports an investigation of variability in a broad absorption-line quasar that was observed by the BHM program. Researchers discovered that a prominent absorption line, which indicates a wind being launched off the quasar accretion disk, is accelerating.

This paper analyzes the X-ray (eROSITA) and optical (SDSS and other) properties of the X-ray sources found and is meant as a demonstration of what is to come with the full eROSITA all-sky survey data that may come in future years.
(3/3)

This paper presents a sample of hard X-ray sources detected by the eROSITA satellite, focusing specifically on extragalactic sources, which primarily include AGN. These sources were targeted in the optical by SDSS-V as a part of the BHM program!

from the BHM program (along with data), they identified 26 accreting compact white dwarf binaries, some of which are new discoveries, and include dwarf novae and different types of cataclysmic variables.

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This work reports on observations taken as a part of SDSS-IV and SDSS-V (BHM) eROSITA followup program! While much of the BHM focus is on quasars, it turns out that some of the X-ray sources from eROSITA are compact white dwarf binaries. Using spectra

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