THE JVLA TALE ON THE MISSING FIREWORKS IN JKCS 041 Maurilio Pannella w Veronica Strazzullo, Stefano Andreon, Frazer Owen and Rosita Paladino LET THE FIREWORKS BEGIN OR … (Alberts et al., 2016) 2 THE REVERSAL OF FORTUNE OR … (Tran et al., 2015) IRC 0218 @ z=1.623 / MOSFIRE-H� 3 THE HERSCHEL VIEW OF GALAXY CLUSTERS XDCP @ z=1.58 / PACS-SPIRE (Santos et al., 2015) 4 AND STILL, THERE ARE CLEAR SIGNATURES OF NURTURING logM*>10.85 (Strazzullo, MP et al., 2019) 5 SOMEWHERE, FOR SOMEONE, THE PARTY SEEMS ALREADY OVER ! (Newman et al., 2014) 6 A MASSIVE GALAXY CLUSTER JKCS 041 AT Z~1.8 N E J - K selected overdensity R 500 20 arcsec 170 kpc @ z=1.8 few times 10^14 Mo X-ray detected 255 275 272 289 286 281 317 332 356 352 355 375/376 17 spectroscopic cluster members 411 359 447 387 404 531 657 693 772 (Newman et al., 2014) 7 A MASSIVE GALAXY CLUSTER JKCS 041 AT Z~1.8 J - K selected overdensity few times 10^14 Mo X-ray detected 17 spectroscopic cluster members UVJ classification 15/17 quiescent (Newman et al., 2014) 8 A MASSIVE GALAXY CLUSTER JKCS 041 AT Z~1.8 J - K selected overdensity few times 10^14 Mo X-ray detected 17 spectroscopic cluster members UVJ classification 15/17 quiescent 100% quenching efficiency ??? (Newman et al., 2014) 9 A MASSIVE GALAXY CLUSTER JKCS 041 AT Z~1.8 Is this a freak? cluster-to-cluster variation? selection bias? UVJ classification? No dust tracer of star formation? (Newman et al., 2014) 10 ON THE UVJ CLASSIFICATION 11 ON THE UVJ CLASSIFICATION Constant SFH Exp-decl SFH 12 ON DUST ATTENUATION AUV = 2.5 LOG (SFRIR/SFRUV + 1) 13 ON DUST ATTENUATION AUV = 2.5 LOG (SFRIR/SFRUV + 1) – UV slopes become bluer with redshift (MP et al., 2015) 14 ON DUST ATTENUATION AUV = 2.5 LOG (SFRIR/SFRUV + 1) – UV slopes become bluer with redshift – SFR gets less attenuated at higher redshift (MP et al., 2015) 15 ON DUST ATTENUATION AUV = 2.5 LOG (SFRIR/SFRUV + 1) – UV slopes become bluer with redshift – SFR gets less attenuated at higher redshift – HII regions attenuation is the same at all redshifts (Price et al., 2013) 16 ON DUST ATTENUATION AUV = 2.5 LOG (SFRIR/SFRUV + 1) x1 x0.8 – UV slopes become bluer with redshift x0.44 – SFR gets less attenuated at higher redshift – HII regions attenuation is the same at all redshifts – E(B-V)cont > 0.8 x E(B-V)lines (MP et al., 2015) 17 ON DUST ATTENUATION — calibrated on FMOS-COSMOS — Halpha from MS/dust attenuation ev. — Hbeta from Halpha/Balmer dec. — [OIII] from Hbeta/M* at z~1.8 — L([OII]) ~ L(Halpha) (Valentino et al., 2017) 18 ON DUST ATTENUATION — calibrated on FMOS-COSMOS — Halpha from MS/dust attenuation ev. — Hbeta from Halpha/Balmer dec. — [OIII] from Hbeta/M* at z~1.8 — L([OII]) ~ L(Halpha) THE MASSIVE POPULATION IS BEYOND REACH ! (Valentino et al., 2017) 19 A CLEAN SHOT THROUGH THE DUST: PROBING THE MS HIGH MASS END OF JKCS 041 WITH JVLA 24 hours JVLA time 3 GHz single pointing rms = 1.6 uJy/beam 0.6” resolution 184 JVLA detections FWHP ~ 14’ 20 A CLEAN SHOT THROUGH THE DUST: PROBING THE MS HIGH MASS END OF JKCS 041 WITH JVLA The radio-FIR correlation L /(3.75 × 1012W) q = log IR IR −1 L1.4 /WHz Long story short … — The correlation holds up to high z — stays (fairly) constant with redshift… qIR (MP et al. 2015) 21 A CLEAN SHOT THROUGH THE DUST: PROBING THE MS HIGH MASS END OF JKCS 041 WITH JVLA 24 hours JVLA time 3 GHz single pointing rms = 1.6 uJy/beam 0.6” resolution 184 JVLA detections FWHP ~ 14’ (MP et al. 2015) 22 THE JVLA TALE ON THE MISSING FIREWORKS 23 THE JVLA TALE ON THE MISSING FIREWORKS 24 THE JVLA TALE ON THE MISSING FIREWORKS 286 352 355 -1.9e-05 -1.5e-05 -1.1e-05 -7.3e-06 -3.6e-06 1.6e-07 3.9e-06 7.6e-06 1.1e-05 1.5e-05 1.9e-05 25 THE JVLA TALE ON THE MISSING FIREWORKS (Newman et al. 2014) 26 THE JVLA TALE ON THE MISSING FIREWORKS (Newman et al. 2014) 27 THE JVLA TALE ON THE MISSING FIREWORKS (Newman et al. 2014) 28 THE JVLA TALE ON THE MISSING FIREWORKS (Schreiber, MP et al. 2015) 29 THE JVLA TALE ON THE MISSING FIREWORKS THEY END UP IN MS ! (Schreiber, MP et al. 2015) 30 THE JVLA TALE ON THE MISSING FIREWORKS SED FITTING SFR ARE IN REASONABLE AGREEMENT WITH THE RADIO BASED ESTIMATES … 31 THE JVLA TALE ON THE MISSING FIREWORKS SED FITTING SFR ARE IN REASONABLE AGREEMENT WITH THE RADIO BASED ESTIMATES … 32 THE JVLA TALE ON THE MISSING FIREWORKS SED FITTING SFR ARE IN REASONABLE AGREEMENT WITH THE RADIO BASED ESTIMATES … 33 THE JVLA TALE ON THE MISSING FIREWORKS SED FITTING SFR ARE IN REASONABLE AGREEMENT WITH THE RADIO BASED ESTIMATES … 34 THE JVLA TALE ON THE MISSING FIREWORKS FROM FREAK TO ORDINARY: A SECOND LIFE FOR JKCS 041 ? WITH “CORRECTED” QUIESCENT FRACTIONS ON THE MASSIVE END APPROACHING BALLPARK VALUES … 35 THE JVLA TALE ON THE MISSING FIREWORKS WHAT IF THE RADIO EMISSION IS POWERED BY AGN? — SHARP INCREASE OF CLUSTER AGN FRACTION WITH REDSHIFT ~1% at z=1 to ~40% at z=2 … — CLUSTER vs. FIELD at z~2 ~40% vs. <10% — RADIO AGN FEEDBACK IN ACTION ? (Bufanda et al., 2017; see also Gupta, MP et al. 2019) 36 WHERE WE GOT SO FAR … JVLA is at present our best shot to uncover massive galaxy SFRs 3 radio detections in the core of JKCS 041 Likely star formation driven events that if further confirmed would produce a new outlook of this remarkable structure Measuring the gas content of these objects will make it possible to firmly confirm this picture 37 THE JVLA VIEW OF THE MISSING FIREWORKS 38 THE JVLA VIEW OF THE MISSING FIREWORKS 39 THE JVLA TALE ON THE MISSING FIREWORKS Checking the radio-IR correlation — prior based photometry of 24um (MP et al. 2015) 40 THE JVLA TALE ON THE MISSING FIREWORKS Checking the radio-IR correlation — prior based photometry of 24um — 24um to SFR sensitive to SFR-mode Main Sequence SED (MP et al. 2015) 41 THE JVLA TALE ON THE MISSING FIREWORKS Checking the radio-IR correlation — prior based photometry of 24um — 24um to SFR sensitive to SFR-mode Still consistent with SF driven radio emission … Main Sequence SED Starburst SED (MP et al. 2015) 42 THE JVLA TALE ON THE MISSING FIREWORKS (Prichard et al. 2017) 43 THE JVLA TALE ON THE MISSING FIREWORKS N E R r = R500 ~ 1’ ~ 500500 kpc 20 arcsec 170 kpc @ z=1.8 255 275 272 289 286 281 317 332 356 352 355 375/376 411 359 447 387 404 531 657 This proposal 693 772 44.